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authorTSR Berry <20988865+TSRBerry@users.noreply.github.com>2023-04-08 01:22:00 +0200
committerMary <thog@protonmail.com>2023-04-27 23:51:14 +0200
commitcee712105850ac3385cd0091a923438167433f9f (patch)
tree4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /Ryujinx.Memory
parentcd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff)
Move solution and projects to src
Diffstat (limited to 'Ryujinx.Memory')
-rw-r--r--Ryujinx.Memory/AddressSpaceManager.cs470
-rw-r--r--Ryujinx.Memory/IRefCounted.cs8
-rw-r--r--Ryujinx.Memory/IVirtualMemoryManager.cs205
-rw-r--r--Ryujinx.Memory/IWritableBlock.cs11
-rw-r--r--Ryujinx.Memory/InvalidAccessHandler.cs9
-rw-r--r--Ryujinx.Memory/InvalidMemoryRegionException.cs19
-rw-r--r--Ryujinx.Memory/MemoryAllocationFlags.cs52
-rw-r--r--Ryujinx.Memory/MemoryBlock.cs443
-rw-r--r--Ryujinx.Memory/MemoryConstants.cs9
-rw-r--r--Ryujinx.Memory/MemoryManagement.cs206
-rw-r--r--Ryujinx.Memory/MemoryManagementUnix.cs200
-rw-r--r--Ryujinx.Memory/MemoryManagementWindows.cs144
-rw-r--r--Ryujinx.Memory/MemoryManagerUnixHelper.cs167
-rw-r--r--Ryujinx.Memory/MemoryMapFlags.cs23
-rw-r--r--Ryujinx.Memory/MemoryNotContiguousException.cs19
-rw-r--r--Ryujinx.Memory/MemoryPermission.cs51
-rw-r--r--Ryujinx.Memory/MemoryProtectionException.cs23
-rw-r--r--Ryujinx.Memory/NativeMemoryManager.cs42
-rw-r--r--Ryujinx.Memory/PageTable.cs141
-rw-r--r--Ryujinx.Memory/Range/HostMemoryRange.cs71
-rw-r--r--Ryujinx.Memory/Range/IMultiRangeItem.cs9
-rw-r--r--Ryujinx.Memory/Range/INonOverlappingRange.cs16
-rw-r--r--Ryujinx.Memory/Range/IRange.cs31
-rw-r--r--Ryujinx.Memory/Range/MemoryRange.cs61
-rw-r--r--Ryujinx.Memory/Range/MultiRange.cs323
-rw-r--r--Ryujinx.Memory/Range/MultiRangeList.cs210
-rw-r--r--Ryujinx.Memory/Range/NonOverlappingRangeList.cs106
-rw-r--r--Ryujinx.Memory/Range/RangeList.cs483
-rw-r--r--Ryujinx.Memory/Ryujinx.Memory.csproj12
-rw-r--r--Ryujinx.Memory/Tracking/AbstractRegion.cs73
-rw-r--r--Ryujinx.Memory/Tracking/BitMap.cs199
-rw-r--r--Ryujinx.Memory/Tracking/ConcurrentBitmap.cs152
-rw-r--r--Ryujinx.Memory/Tracking/IMultiRegionHandle.cs55
-rw-r--r--Ryujinx.Memory/Tracking/IRegionHandle.cs18
-rw-r--r--Ryujinx.Memory/Tracking/MemoryTracking.cs306
-rw-r--r--Ryujinx.Memory/Tracking/MultiRegionHandle.cs415
-rw-r--r--Ryujinx.Memory/Tracking/PreciseRegionSignal.cs4
-rw-r--r--Ryujinx.Memory/Tracking/RegionHandle.cs464
-rw-r--r--Ryujinx.Memory/Tracking/RegionSignal.cs4
-rw-r--r--Ryujinx.Memory/Tracking/SmartMultiRegionHandle.cs280
-rw-r--r--Ryujinx.Memory/Tracking/VirtualRegion.cs144
-rw-r--r--Ryujinx.Memory/WindowsShared/MappingTree.cs87
-rw-r--r--Ryujinx.Memory/WindowsShared/PlaceholderManager.cs736
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsApi.cs101
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsApiException.cs24
-rw-r--r--Ryujinx.Memory/WindowsShared/WindowsFlags.cs52
-rw-r--r--Ryujinx.Memory/WritableRegion.cs38
47 files changed, 0 insertions, 6716 deletions
diff --git a/Ryujinx.Memory/AddressSpaceManager.cs b/Ryujinx.Memory/AddressSpaceManager.cs
deleted file mode 100644
index ac89fca6..00000000
--- a/Ryujinx.Memory/AddressSpaceManager.cs
+++ /dev/null
@@ -1,470 +0,0 @@
-using Ryujinx.Memory.Range;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Represents a address space manager.
- /// Supports virtual memory region mapping, address translation and read/write access to mapped regions.
- /// </summary>
- public sealed class AddressSpaceManager : IVirtualMemoryManager, IWritableBlock
- {
- public const int PageBits = PageTable<nuint>.PageBits;
- public const int PageSize = PageTable<nuint>.PageSize;
- public const int PageMask = PageTable<nuint>.PageMask;
-
- /// <inheritdoc/>
- public bool Supports4KBPages => true;
-
- /// <summary>
- /// Address space width in bits.
- /// </summary>
- public int AddressSpaceBits { get; }
-
- private readonly ulong _addressSpaceSize;
-
- private readonly MemoryBlock _backingMemory;
- private readonly PageTable<nuint> _pageTable;
-
- /// <summary>
- /// Creates a new instance of the memory manager.
- /// </summary>
- /// <param name="backingMemory">Physical backing memory where virtual memory will be mapped to</param>
- /// <param name="addressSpaceSize">Size of the address space</param>
- public AddressSpaceManager(MemoryBlock backingMemory, ulong addressSpaceSize)
- {
- ulong asSize = PageSize;
- int asBits = PageBits;
-
- while (asSize < addressSpaceSize)
- {
- asSize <<= 1;
- asBits++;
- }
-
- AddressSpaceBits = asBits;
- _addressSpaceSize = asSize;
- _backingMemory = backingMemory;
- _pageTable = new PageTable<nuint>();
- }
-
- /// <inheritdoc/>
- public void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags)
- {
- AssertValidAddressAndSize(va, size);
-
- while (size != 0)
- {
- _pageTable.Map(va, (nuint)(ulong)_backingMemory.GetPointer(pa, PageSize));
-
- va += PageSize;
- pa += PageSize;
- size -= PageSize;
- }
- }
-
- /// <inheritdoc/>
- public void MapForeign(ulong va, nuint hostPointer, ulong size)
- {
- AssertValidAddressAndSize(va, size);
-
- while (size != 0)
- {
- _pageTable.Map(va, hostPointer);
-
- va += PageSize;
- hostPointer += PageSize;
- size -= PageSize;
- }
- }
-
- /// <inheritdoc/>
- public void Unmap(ulong va, ulong size)
- {
- AssertValidAddressAndSize(va, size);
-
- while (size != 0)
- {
- _pageTable.Unmap(va);
-
- va += PageSize;
- size -= PageSize;
- }
- }
-
- /// <inheritdoc/>
- public T Read<T>(ulong va) where T : unmanaged
- {
- return MemoryMarshal.Cast<byte, T>(GetSpan(va, Unsafe.SizeOf<T>()))[0];
- }
-
- /// <inheritdoc/>
- public void Read(ulong va, Span<byte> data)
- {
- ReadImpl(va, data);
- }
-
- /// <inheritdoc/>
- public void Write<T>(ulong va, T value) where T : unmanaged
- {
- Write(va, MemoryMarshal.Cast<T, byte>(MemoryMarshal.CreateSpan(ref value, 1)));
- }
-
- /// <inheritdoc/>
- public void Write(ulong va, ReadOnlySpan<byte> data)
- {
- if (data.Length == 0)
- {
- return;
- }
-
- AssertValidAddressAndSize(va, (ulong)data.Length);
-
- if (IsContiguousAndMapped(va, data.Length))
- {
- data.CopyTo(GetHostSpanContiguous(va, data.Length));
- }
- else
- {
- int offset = 0, size;
-
- if ((va & PageMask) != 0)
- {
- size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
-
- data.Slice(0, size).CopyTo(GetHostSpanContiguous(va, size));
-
- offset += size;
- }
-
- for (; offset < data.Length; offset += size)
- {
- size = Math.Min(data.Length - offset, PageSize);
-
- data.Slice(offset, size).CopyTo(GetHostSpanContiguous(va + (ulong)offset, size));
- }
- }
- }
-
- /// <inheritdoc/>
- public bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data)
- {
- Write(va, data);
-
- return true;
- }
-
- /// <inheritdoc/>
- public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
- {
- if (size == 0)
- {
- return ReadOnlySpan<byte>.Empty;
- }
-
- if (IsContiguousAndMapped(va, size))
- {
- return GetHostSpanContiguous(va, size);
- }
- else
- {
- Span<byte> data = new byte[size];
-
- ReadImpl(va, data);
-
- return data;
- }
- }
-
- /// <inheritdoc/>
- public unsafe WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
- {
- if (size == 0)
- {
- return new WritableRegion(null, va, Memory<byte>.Empty);
- }
-
- if (IsContiguousAndMapped(va, size))
- {
- return new WritableRegion(null, va, new NativeMemoryManager<byte>((byte*)GetHostAddress(va), size).Memory);
- }
- else
- {
- Memory<byte> memory = new byte[size];
-
- GetSpan(va, size).CopyTo(memory.Span);
-
- return new WritableRegion(this, va, memory);
- }
- }
-
- /// <inheritdoc/>
- public unsafe ref T GetRef<T>(ulong va) where T : unmanaged
- {
- if (!IsContiguous(va, Unsafe.SizeOf<T>()))
- {
- ThrowMemoryNotContiguous();
- }
-
- return ref *(T*)GetHostAddress(va);
- }
-
- /// <inheritdoc/>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private int GetPagesCount(ulong va, uint size, out ulong startVa)
- {
- // WARNING: Always check if ulong does not overflow during the operations.
- startVa = va & ~(ulong)PageMask;
- ulong vaSpan = (va - startVa + size + PageMask) & ~(ulong)PageMask;
-
- return (int)(vaSpan / PageSize);
- }
-
- private void ThrowMemoryNotContiguous() => throw new MemoryNotContiguousException();
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private bool IsContiguousAndMapped(ulong va, int size) => IsContiguous(va, size) && IsMapped(va);
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private bool IsContiguous(ulong va, int size)
- {
- if (!ValidateAddress(va) || !ValidateAddressAndSize(va, (ulong)size))
- {
- return false;
- }
-
- int pages = GetPagesCount(va, (uint)size, out va);
-
- for (int page = 0; page < pages - 1; page++)
- {
- if (!ValidateAddress(va + PageSize))
- {
- return false;
- }
-
- if (GetHostAddress(va) + PageSize != GetHostAddress(va + PageSize))
- {
- return false;
- }
-
- va += PageSize;
- }
-
- return true;
- }
-
- /// <inheritdoc/>
- public IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size)
- {
- if (size == 0)
- {
- return Enumerable.Empty<HostMemoryRange>();
- }
-
- return GetHostRegionsImpl(va, size);
- }
-
- /// <inheritdoc/>
- public IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size)
- {
- if (size == 0)
- {
- return Enumerable.Empty<MemoryRange>();
- }
-
- var hostRegions = GetHostRegionsImpl(va, size);
- if (hostRegions == null)
- {
- return null;
- }
-
- var regions = new MemoryRange[hostRegions.Count];
-
- ulong backingStart = (ulong)_backingMemory.Pointer;
- ulong backingEnd = backingStart + _backingMemory.Size;
-
- int count = 0;
-
- for (int i = 0; i < regions.Length; i++)
- {
- var hostRegion = hostRegions[i];
-
- if ((ulong)hostRegion.Address >= backingStart && (ulong)hostRegion.Address < backingEnd)
- {
- regions[count++] = new MemoryRange((ulong)hostRegion.Address - backingStart, hostRegion.Size);
- }
- }
-
- if (count != regions.Length)
- {
- return new ArraySegment<MemoryRange>(regions, 0, count);
- }
-
- return regions;
- }
-
- private List<HostMemoryRange> GetHostRegionsImpl(ulong va, ulong size)
- {
- if (!ValidateAddress(va) || !ValidateAddressAndSize(va, size))
- {
- return null;
- }
-
- int pages = GetPagesCount(va, (uint)size, out va);
-
- var regions = new List<HostMemoryRange>();
-
- nuint regionStart = GetHostAddress(va);
- ulong regionSize = PageSize;
-
- for (int page = 0; page < pages - 1; page++)
- {
- if (!ValidateAddress(va + PageSize))
- {
- return null;
- }
-
- nuint newHostAddress = GetHostAddress(va + PageSize);
-
- if (GetHostAddress(va) + PageSize != newHostAddress)
- {
- regions.Add(new HostMemoryRange(regionStart, regionSize));
- regionStart = newHostAddress;
- regionSize = 0;
- }
-
- va += PageSize;
- regionSize += PageSize;
- }
-
- regions.Add(new HostMemoryRange(regionStart, regionSize));
-
- return regions;
- }
-
- private void ReadImpl(ulong va, Span<byte> data)
- {
- if (data.Length == 0)
- {
- return;
- }
-
- AssertValidAddressAndSize(va, (ulong)data.Length);
-
- int offset = 0, size;
-
- if ((va & PageMask) != 0)
- {
- size = Math.Min(data.Length, PageSize - (int)(va & PageMask));
-
- GetHostSpanContiguous(va, size).CopyTo(data.Slice(0, size));
-
- offset += size;
- }
-
- for (; offset < data.Length; offset += size)
- {
- size = Math.Min(data.Length - offset, PageSize);
-
- GetHostSpanContiguous(va + (ulong)offset, size).CopyTo(data.Slice(offset, size));
- }
- }
-
- /// <inheritdoc/>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public bool IsMapped(ulong va)
- {
- if (!ValidateAddress(va))
- {
- return false;
- }
-
- return _pageTable.Read(va) != 0;
- }
-
- /// <inheritdoc/>
- public bool IsRangeMapped(ulong va, ulong size)
- {
- if (size == 0UL)
- {
- return true;
- }
-
- if (!ValidateAddressAndSize(va, size))
- {
- return false;
- }
-
- int pages = GetPagesCount(va, (uint)size, out va);
-
- for (int page = 0; page < pages; page++)
- {
- if (!IsMapped(va))
- {
- return false;
- }
-
- va += PageSize;
- }
-
- return true;
- }
-
- private bool ValidateAddress(ulong va)
- {
- return va < _addressSpaceSize;
- }
-
- /// <summary>
- /// Checks if the combination of virtual address and size is part of the addressable space.
- /// </summary>
- /// <param name="va">Virtual address of the range</param>
- /// <param name="size">Size of the range in bytes</param>
- /// <returns>True if the combination of virtual address and size is part of the addressable space</returns>
- private bool ValidateAddressAndSize(ulong va, ulong size)
- {
- ulong endVa = va + size;
- return endVa >= va && endVa >= size && endVa <= _addressSpaceSize;
- }
-
- /// <summary>
- /// Ensures the combination of virtual address and size is part of the addressable space.
- /// </summary>
- /// <param name="va">Virtual address of the range</param>
- /// <param name="size">Size of the range in bytes</param>
- /// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified outside the addressable space</exception>
- private void AssertValidAddressAndSize(ulong va, ulong size)
- {
- if (!ValidateAddressAndSize(va, size))
- {
- throw new InvalidMemoryRegionException($"va=0x{va:X16}, size=0x{size:X16}");
- }
- }
-
- private unsafe Span<byte> GetHostSpanContiguous(ulong va, int size)
- {
- return new Span<byte>((void*)GetHostAddress(va), size);
- }
-
- private nuint GetHostAddress(ulong va)
- {
- return _pageTable.Read(va) + (nuint)(va & PageMask);
- }
-
- /// <inheritdoc/>
- public void TrackingReprotect(ulong va, ulong size, MemoryPermission protection)
- {
- throw new NotImplementedException();
- }
-
- /// <inheritdoc/>
- public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null)
- {
- // Only the ARM Memory Manager has tracking for now.
- }
- }
-}
diff --git a/Ryujinx.Memory/IRefCounted.cs b/Ryujinx.Memory/IRefCounted.cs
deleted file mode 100644
index e0a311d6..00000000
--- a/Ryujinx.Memory/IRefCounted.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace Ryujinx.Memory
-{
- public interface IRefCounted
- {
- void IncrementReferenceCount();
- void DecrementReferenceCount();
- }
-}
diff --git a/Ryujinx.Memory/IVirtualMemoryManager.cs b/Ryujinx.Memory/IVirtualMemoryManager.cs
deleted file mode 100644
index edbfc885..00000000
--- a/Ryujinx.Memory/IVirtualMemoryManager.cs
+++ /dev/null
@@ -1,205 +0,0 @@
-using Ryujinx.Memory.Range;
-using System;
-using System.Buffers;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory
-{
- public interface IVirtualMemoryManager
- {
- /// <summary>
- /// Indicates whenever the memory manager supports aliasing pages at 4KB granularity.
- /// </summary>
- /// <returns>True if 4KB pages are supported by the memory manager, false otherwise</returns>
- bool Supports4KBPages { get; }
-
- /// <summary>
- /// Maps a virtual memory range into a physical memory range.
- /// </summary>
- /// <remarks>
- /// Addresses and size must be page aligned.
- /// </remarks>
- /// <param name="va">Virtual memory address</param>
- /// <param name="pa">Physical memory address where the region should be mapped to</param>
- /// <param name="size">Size to be mapped</param>
- /// <param name="flags">Flags controlling memory mapping</param>
- void Map(ulong va, ulong pa, ulong size, MemoryMapFlags flags);
-
- /// <summary>
- /// Maps a virtual memory range into an arbitrary host memory range.
- /// </summary>
- /// <remarks>
- /// Addresses and size must be page aligned.
- /// Not all memory managers supports this feature.
- /// </remarks>
- /// <param name="va">Virtual memory address</param>
- /// <param name="hostPointer">Host pointer where the virtual region should be mapped</param>
- /// <param name="size">Size to be mapped</param>
- void MapForeign(ulong va, nuint hostPointer, ulong size);
-
- /// <summary>
- /// Unmaps a previously mapped range of virtual memory.
- /// </summary>
- /// <param name="va">Virtual address of the range to be unmapped</param>
- /// <param name="size">Size of the range to be unmapped</param>
- void Unmap(ulong va, ulong size);
-
- /// <summary>
- /// Reads data from CPU mapped memory.
- /// </summary>
- /// <typeparam name="T">Type of the data being read</typeparam>
- /// <param name="va">Virtual address of the data in memory</param>
- /// <returns>The data</returns>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- T Read<T>(ulong va) where T : unmanaged;
-
- /// <summary>
- /// Reads data from CPU mapped memory.
- /// </summary>
- /// <param name="va">Virtual address of the data in memory</param>
- /// <param name="data">Span to store the data being read into</param>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- void Read(ulong va, Span<byte> data);
-
- /// <summary>
- /// Writes data to CPU mapped memory.
- /// </summary>
- /// <typeparam name="T">Type of the data being written</typeparam>
- /// <param name="va">Virtual address to write the data into</param>
- /// <param name="value">Data to be written</param>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- void Write<T>(ulong va, T value) where T : unmanaged;
-
- /// <summary>
- /// Writes data to CPU mapped memory, with write tracking.
- /// </summary>
- /// <param name="va">Virtual address to write the data into</param>
- /// <param name="data">Data to be written</param>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- void Write(ulong va, ReadOnlySpan<byte> data);
-
- /// <summary>
- /// Writes data to CPU mapped memory, with write tracking.
- /// </summary>
- /// <param name="va">Virtual address to write the data into</param>
- /// <param name="data">Data to be written</param>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- public void Write(ulong va, ReadOnlySequence<byte> data)
- {
- foreach (ReadOnlyMemory<byte> segment in data)
- {
- Write(va, segment.Span);
- va += (ulong)segment.Length;
- }
- }
-
- /// <summary>
- /// Writes data to the application process, returning false if the data was not changed.
- /// This triggers read memory tracking, as a redundancy check would be useless if the data is not up to date.
- /// </summary>
- /// <remarks>The memory manager can return that memory has changed when it hasn't to avoid expensive data copies.</remarks>
- /// <param name="va">Virtual address to write the data into</param>
- /// <param name="data">Data to be written</param>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- /// <returns>True if the data was changed, false otherwise</returns>
- bool WriteWithRedundancyCheck(ulong va, ReadOnlySpan<byte> data);
-
- void Fill(ulong va, ulong size, byte value)
- {
- const int MaxChunkSize = 1 << 24;
-
- for (ulong subOffset = 0; subOffset < size; subOffset += MaxChunkSize)
- {
- int copySize = (int)Math.Min(MaxChunkSize, size - subOffset);
-
- using var writableRegion = GetWritableRegion(va + subOffset, copySize);
-
- writableRegion.Memory.Span.Fill(value);
- }
- }
-
- /// <summary>
- /// Gets a read-only span of data from CPU mapped memory.
- /// </summary>
- /// <param name="va">Virtual address of the data</param>
- /// <param name="size">Size of the data</param>
- /// <param name="tracked">True if read tracking is triggered on the span</param>
- /// <returns>A read-only span of the data</returns>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false);
-
- /// <summary>
- /// Gets a region of memory that can be written to.
- /// </summary>
- /// <param name="va">Virtual address of the data</param>
- /// <param name="size">Size of the data</param>
- /// <param name="tracked">True if write tracking is triggered on the span</param>
- /// <returns>A writable region of memory containing the data</returns>
- /// <exception cref="InvalidMemoryRegionException">Throw for unhandled invalid or unmapped memory accesses</exception>
- WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false);
-
- /// <summary>
- /// Gets a reference for the given type at the specified virtual memory address.
- /// </summary>
- /// <remarks>
- /// The data must be located at a contiguous memory region.
- /// </remarks>
- /// <typeparam name="T">Type of the data to get the reference</typeparam>
- /// <param name="va">Virtual address of the data</param>
- /// <returns>A reference to the data in memory</returns>
- /// <exception cref="MemoryNotContiguousException">Throw if the specified memory region is not contiguous in physical memory</exception>
- ref T GetRef<T>(ulong va) where T : unmanaged;
-
- /// <summary>
- /// Gets the host regions that make up the given virtual address region.
- /// If any part of the virtual region is unmapped, null is returned.
- /// </summary>
- /// <param name="va">Virtual address of the range</param>
- /// <param name="size">Size of the range</param>
- /// <returns>Array of host regions</returns>
- IEnumerable<HostMemoryRange> GetHostRegions(ulong va, ulong size);
-
- /// <summary>
- /// Gets the physical regions that make up the given virtual address region.
- /// If any part of the virtual region is unmapped, null is returned.
- /// </summary>
- /// <param name="va">Virtual address of the range</param>
- /// <param name="size">Size of the range</param>
- /// <returns>Array of physical regions</returns>
- IEnumerable<MemoryRange> GetPhysicalRegions(ulong va, ulong size);
-
- /// <summary>
- /// Checks if the page at a given CPU virtual address is mapped.
- /// </summary>
- /// <param name="va">Virtual address to check</param>
- /// <returns>True if the address is mapped, false otherwise</returns>
- bool IsMapped(ulong va);
-
- /// <summary>
- /// Checks if a memory range is mapped.
- /// </summary>
- /// <param name="va">Virtual address of the range</param>
- /// <param name="size">Size of the range in bytes</param>
- /// <returns>True if the entire range is mapped, false otherwise</returns>
- bool IsRangeMapped(ulong va, ulong size);
-
- /// <summary>
- /// Alerts the memory tracking that a given region has been read from or written to.
- /// This should be called before read/write is performed.
- /// </summary>
- /// <param name="va">Virtual address of the region</param>
- /// <param name="size">Size of the region</param>
- /// <param name="write">True if the region was written, false if read</param>
- /// <param name="precise">True if the access is precise, false otherwise</param>
- /// <param name="exemptId">Optional ID of the handles that should not be signalled</param>
- void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false, int? exemptId = null);
-
- /// <summary>
- /// Reprotect a region of virtual memory for tracking.
- /// </summary>
- /// <param name="va">Virtual address base</param>
- /// <param name="size">Size of the region to protect</param>
- /// <param name="protection">Memory protection to set</param>
- void TrackingReprotect(ulong va, ulong size, MemoryPermission protection);
- }
-}
diff --git a/Ryujinx.Memory/IWritableBlock.cs b/Ryujinx.Memory/IWritableBlock.cs
deleted file mode 100644
index 36b9f5a6..00000000
--- a/Ryujinx.Memory/IWritableBlock.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- public interface IWritableBlock
- {
- void Write(ulong va, ReadOnlySpan<byte> data);
-
- void WriteUntracked(ulong va, ReadOnlySpan<byte> data) => Write(va, data);
- }
-}
diff --git a/Ryujinx.Memory/InvalidAccessHandler.cs b/Ryujinx.Memory/InvalidAccessHandler.cs
deleted file mode 100644
index 3dadb766..00000000
--- a/Ryujinx.Memory/InvalidAccessHandler.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Function that handles a invalid memory access from the emulated CPU.
- /// </summary>
- /// <param name="va">Virtual address of the invalid region that is being accessed</param>
- /// <returns>True if the invalid access should be ignored, false otherwise</returns>
- public delegate bool InvalidAccessHandler(ulong va);
-}
diff --git a/Ryujinx.Memory/InvalidMemoryRegionException.cs b/Ryujinx.Memory/InvalidMemoryRegionException.cs
deleted file mode 100644
index 01482400..00000000
--- a/Ryujinx.Memory/InvalidMemoryRegionException.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- public class InvalidMemoryRegionException : Exception
- {
- public InvalidMemoryRegionException() : base("Attempted to access an invalid memory region.")
- {
- }
-
- public InvalidMemoryRegionException(string message) : base(message)
- {
- }
-
- public InvalidMemoryRegionException(string message, Exception innerException) : base(message, innerException)
- {
- }
- }
-}
diff --git a/Ryujinx.Memory/MemoryAllocationFlags.cs b/Ryujinx.Memory/MemoryAllocationFlags.cs
deleted file mode 100644
index 6f0ef1aa..00000000
--- a/Ryujinx.Memory/MemoryAllocationFlags.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Flags that controls allocation and other properties of the memory block memory.
- /// </summary>
- [Flags]
- public enum MemoryAllocationFlags
- {
- /// <summary>
- /// No special allocation settings.
- /// </summary>
- None = 0,
-
- /// <summary>
- /// Reserve a region of memory on the process address space,
- /// without actually allocation any backing memory.
- /// </summary>
- Reserve = 1 << 0,
-
- /// <summary>
- /// Enables read and write tracking of the memory block.
- /// This currently does nothing and is reserved for future use.
- /// </summary>
- Tracked = 1 << 1,
-
- /// <summary>
- /// Enables mirroring of the memory block through aliasing of memory pages.
- /// When enabled, this allows creating more memory blocks sharing the same backing storage.
- /// </summary>
- Mirrorable = 1 << 2,
-
- /// <summary>
- /// Indicates that the memory block should support mapping views of a mirrorable memory block.
- /// The block that is to have their views mapped should be created with the <see cref="Mirrorable"/> flag.
- /// </summary>
- ViewCompatible = 1 << 3,
-
- /// <summary>
- /// If used with the <see cref="Mirrorable"/> flag, indicates that the memory block will only be used as
- /// backing storage and will never be accessed directly, so the memory for the block will not be mapped.
- /// </summary>
- NoMap = 1 << 4,
-
- /// <summary>
- /// Indicates that the memory will be used to store JIT generated code.
- /// On some platforms, this requires special flags to be passed that will allow the memory to be executable.
- /// </summary>
- Jit = 1 << 5
- }
-}
diff --git a/Ryujinx.Memory/MemoryBlock.cs b/Ryujinx.Memory/MemoryBlock.cs
deleted file mode 100644
index 885ef456..00000000
--- a/Ryujinx.Memory/MemoryBlock.cs
+++ /dev/null
@@ -1,443 +0,0 @@
-using System;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Threading;
-
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Represents a block of contiguous physical guest memory.
- /// </summary>
- public sealed class MemoryBlock : IWritableBlock, IDisposable
- {
- private readonly bool _usesSharedMemory;
- private readonly bool _isMirror;
- private readonly bool _viewCompatible;
- private readonly bool _forJit;
- private IntPtr _sharedMemory;
- private IntPtr _pointer;
-
- /// <summary>
- /// Pointer to the memory block data.
- /// </summary>
- public IntPtr Pointer => _pointer;
-
- /// <summary>
- /// Size of the memory block.
- /// </summary>
- public ulong Size { get; }
-
- /// <summary>
- /// Creates a new instance of the memory block class.
- /// </summary>
- /// <param name="size">Size of the memory block in bytes</param>
- /// <param name="flags">Flags that controls memory block memory allocation</param>
- /// <exception cref="OutOfMemoryException">Throw when there's no enough memory to allocate the requested size</exception>
- /// <exception cref="PlatformNotSupportedException">Throw when the current platform is not supported</exception>
- public MemoryBlock(ulong size, MemoryAllocationFlags flags = MemoryAllocationFlags.None)
- {
- if (flags.HasFlag(MemoryAllocationFlags.Mirrorable))
- {
- _sharedMemory = MemoryManagement.CreateSharedMemory(size, flags.HasFlag(MemoryAllocationFlags.Reserve));
-
- if (!flags.HasFlag(MemoryAllocationFlags.NoMap))
- {
- _pointer = MemoryManagement.MapSharedMemory(_sharedMemory, size);
- }
-
- _usesSharedMemory = true;
- }
- else if (flags.HasFlag(MemoryAllocationFlags.Reserve))
- {
- _viewCompatible = flags.HasFlag(MemoryAllocationFlags.ViewCompatible);
- _forJit = flags.HasFlag(MemoryAllocationFlags.Jit);
- _pointer = MemoryManagement.Reserve(size, _forJit, _viewCompatible);
- }
- else
- {
- _forJit = flags.HasFlag(MemoryAllocationFlags.Jit);
- _pointer = MemoryManagement.Allocate(size, _forJit);
- }
-
- Size = size;
- }
-
- /// <summary>
- /// Creates a new instance of the memory block class, with a existing backing storage.
- /// </summary>
- /// <param name="size">Size of the memory block in bytes</param>
- /// <param name="sharedMemory">Shared memory to use as backing storage for this block</param>
- /// <exception cref="OutOfMemoryException">Throw when there's no enough address space left to map the shared memory</exception>
- /// <exception cref="PlatformNotSupportedException">Throw when the current platform is not supported</exception>
- private MemoryBlock(ulong size, IntPtr sharedMemory)
- {
- _pointer = MemoryManagement.MapSharedMemory(sharedMemory, size);
- Size = size;
- _usesSharedMemory = true;
- _isMirror = true;
- }
-
- /// <summary>
- /// Creates a memory block that shares the backing storage with this block.
- /// The memory and page commitments will be shared, however memory protections are separate.
- /// </summary>
- /// <returns>A new memory block that shares storage with this one</returns>
- /// <exception cref="NotSupportedException">Throw when the current memory block does not support mirroring</exception>
- /// <exception cref="OutOfMemoryException">Throw when there's no enough address space left to map the shared memory</exception>
- /// <exception cref="PlatformNotSupportedException">Throw when the current platform is not supported</exception>
- public MemoryBlock CreateMirror()
- {
- if (_sharedMemory == IntPtr.Zero)
- {
- throw new NotSupportedException("Mirroring is not supported on the memory block because the Mirrorable flag was not set.");
- }
-
- return new MemoryBlock(Size, _sharedMemory);
- }
-
- /// <summary>
- /// Commits a region of memory that has previously been reserved.
- /// This can be used to allocate memory on demand.
- /// </summary>
- /// <param name="offset">Starting offset of the range to be committed</param>
- /// <param name="size">Size of the range to be committed</param>
- /// <returns>True if the operation was successful, false otherwise</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- public bool Commit(ulong offset, ulong size)
- {
- return MemoryManagement.Commit(GetPointerInternal(offset, size), size, _forJit);
- }
-
- /// <summary>
- /// Decommits a region of memory that has previously been reserved and optionally comitted.
- /// This can be used to free previously allocated memory on demand.
- /// </summary>
- /// <param name="offset">Starting offset of the range to be decommitted</param>
- /// <param name="size">Size of the range to be decommitted</param>
- /// <returns>True if the operation was successful, false otherwise</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- public bool Decommit(ulong offset, ulong size)
- {
- return MemoryManagement.Decommit(GetPointerInternal(offset, size), size);
- }
-
- /// <summary>
- /// Maps a view of memory from another memory block.
- /// </summary>
- /// <param name="srcBlock">Memory block from where the backing memory will be taken</param>
- /// <param name="srcOffset">Offset on <paramref name="srcBlock"/> of the region that should be mapped</param>
- /// <param name="dstOffset">Offset to map the view into on this block</param>
- /// <param name="size">Size of the range to be mapped</param>
- /// <exception cref="NotSupportedException">Throw when the source memory block does not support mirroring</exception>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- public void MapView(MemoryBlock srcBlock, ulong srcOffset, ulong dstOffset, ulong size)
- {
- if (srcBlock._sharedMemory == IntPtr.Zero)
- {
- throw new ArgumentException("The source memory block is not mirrorable, and thus cannot be mapped on the current block.");
- }
-
- MemoryManagement.MapView(srcBlock._sharedMemory, srcOffset, GetPointerInternal(dstOffset, size), size, this);
- }
-
- /// <summary>
- /// Unmaps a view of memory from another memory block.
- /// </summary>
- /// <param name="srcBlock">Memory block from where the backing memory was taken during map</param>
- /// <param name="offset">Offset of the view previously mapped with <see cref="MapView"/></param>
- /// <param name="size">Size of the range to be unmapped</param>
- public void UnmapView(MemoryBlock srcBlock, ulong offset, ulong size)
- {
- MemoryManagement.UnmapView(srcBlock._sharedMemory, GetPointerInternal(offset, size), size, this);
- }
-
- /// <summary>
- /// Reprotects a region of memory.
- /// </summary>
- /// <param name="offset">Starting offset of the range to be reprotected</param>
- /// <param name="size">Size of the range to be reprotected</param>
- /// <param name="permission">New memory permissions</param>
- /// <param name="throwOnFail">True if a failed reprotect should throw</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- /// <exception cref="MemoryProtectionException">Throw when <paramref name="permission"/> is invalid</exception>
- public void Reprotect(ulong offset, ulong size, MemoryPermission permission, bool throwOnFail = true)
- {
- MemoryManagement.Reprotect(GetPointerInternal(offset, size), size, permission, _viewCompatible, throwOnFail);
- }
-
- /// <summary>
- /// Reads bytes from the memory block.
- /// </summary>
- /// <param name="offset">Starting offset of the range being read</param>
- /// <param name="data">Span where the bytes being read will be copied to</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified for the the data is out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public void Read(ulong offset, Span<byte> data)
- {
- GetSpan(offset, data.Length).CopyTo(data);
- }
-
- /// <summary>
- /// Reads data from the memory block.
- /// </summary>
- /// <typeparam name="T">Type of the data</typeparam>
- /// <param name="offset">Offset where the data is located</param>
- /// <returns>Data at the specified address</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified for the the data is out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public T Read<T>(ulong offset) where T : unmanaged
- {
- return GetRef<T>(offset);
- }
-
- /// <summary>
- /// Writes bytes to the memory block.
- /// </summary>
- /// <param name="offset">Starting offset of the range being written</param>
- /// <param name="data">Span where the bytes being written will be copied from</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified for the the data is out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public void Write(ulong offset, ReadOnlySpan<byte> data)
- {
- data.CopyTo(GetSpan(offset, data.Length));
- }
-
- /// <summary>
- /// Writes data to the memory block.
- /// </summary>
- /// <typeparam name="T">Type of the data being written</typeparam>
- /// <param name="offset">Offset to write the data into</param>
- /// <param name="data">Data to be written</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when the memory region specified for the the data is out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public void Write<T>(ulong offset, T data) where T : unmanaged
- {
- GetRef<T>(offset) = data;
- }
-
- /// <summary>
- /// Copies data from one memory location to another.
- /// </summary>
- /// <param name="dstOffset">Destination offset to write the data into</param>
- /// <param name="srcOffset">Source offset to read the data from</param>
- /// <param name="size">Size of the copy in bytes</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when <paramref name="srcOffset"/>, <paramref name="dstOffset"/> or <paramref name="size"/> is out of range</exception>
- public void Copy(ulong dstOffset, ulong srcOffset, ulong size)
- {
- const int MaxChunkSize = 1 << 24;
-
- for (ulong offset = 0; offset < size; offset += MaxChunkSize)
- {
- int copySize = (int)Math.Min(MaxChunkSize, size - offset);
-
- Write(dstOffset + offset, GetSpan(srcOffset + offset, copySize));
- }
- }
-
- /// <summary>
- /// Fills a region of memory with <paramref name="value"/>.
- /// </summary>
- /// <param name="offset">Offset of the region to fill with <paramref name="value"/></param>
- /// <param name="size">Size in bytes of the region to fill</param>
- /// <param name="value">Value to use for the fill</param>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- public void Fill(ulong offset, ulong size, byte value)
- {
- const int MaxChunkSize = 1 << 24;
-
- for (ulong subOffset = 0; subOffset < size; subOffset += MaxChunkSize)
- {
- int copySize = (int)Math.Min(MaxChunkSize, size - subOffset);
-
- GetSpan(offset + subOffset, copySize).Fill(value);
- }
- }
-
- /// <summary>
- /// Gets a reference of the data at a given memory block region.
- /// </summary>
- /// <typeparam name="T">Data type</typeparam>
- /// <param name="offset">Offset of the memory region</param>
- /// <returns>A reference to the given memory region data</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public unsafe ref T GetRef<T>(ulong offset) where T : unmanaged
- {
- IntPtr ptr = _pointer;
-
- ObjectDisposedException.ThrowIf(ptr == IntPtr.Zero, this);
-
- int size = Unsafe.SizeOf<T>();
-
- ulong endOffset = offset + (ulong)size;
-
- if (endOffset > Size || endOffset < offset)
- {
- ThrowInvalidMemoryRegionException();
- }
-
- return ref Unsafe.AsRef<T>((void*)PtrAddr(ptr, offset));
- }
-
- /// <summary>
- /// Gets the pointer of a given memory block region.
- /// </summary>
- /// <param name="offset">Start offset of the memory region</param>
- /// <param name="size">Size in bytes of the region</param>
- /// <returns>The pointer to the memory region</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public IntPtr GetPointer(ulong offset, ulong size) => GetPointerInternal(offset, size);
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private IntPtr GetPointerInternal(ulong offset, ulong size)
- {
- IntPtr ptr = _pointer;
-
- ObjectDisposedException.ThrowIf(ptr == IntPtr.Zero, this);
-
- ulong endOffset = offset + size;
-
- if (endOffset > Size || endOffset < offset)
- {
- ThrowInvalidMemoryRegionException();
- }
-
- return PtrAddr(ptr, offset);
- }
-
- /// <summary>
- /// Gets the <see cref="Span{T}"/> of a given memory block region.
- /// </summary>
- /// <param name="offset">Start offset of the memory region</param>
- /// <param name="size">Size in bytes of the region</param>
- /// <returns>Span of the memory region</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public unsafe Span<byte> GetSpan(ulong offset, int size)
- {
- return new Span<byte>((void*)GetPointerInternal(offset, (ulong)size), size);
- }
-
- /// <summary>
- /// Gets the <see cref="Memory{T}"/> of a given memory block region.
- /// </summary>
- /// <param name="offset">Start offset of the memory region</param>
- /// <param name="size">Size in bytes of the region</param>
- /// <returns>Memory of the memory region</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public unsafe Memory<byte> GetMemory(ulong offset, int size)
- {
- return new NativeMemoryManager<byte>((byte*)GetPointerInternal(offset, (ulong)size), size).Memory;
- }
-
- /// <summary>
- /// Gets a writable region of a given memory block region.
- /// </summary>
- /// <param name="offset">Start offset of the memory region</param>
- /// <param name="size">Size in bytes of the region</param>
- /// <returns>Writable region of the memory region</returns>
- /// <exception cref="ObjectDisposedException">Throw when the memory block has already been disposed</exception>
- /// <exception cref="InvalidMemoryRegionException">Throw when either <paramref name="offset"/> or <paramref name="size"/> are out of range</exception>
- public WritableRegion GetWritableRegion(ulong offset, int size)
- {
- return new WritableRegion(null, offset, GetMemory(offset, size));
- }
-
- /// <summary>
- /// Adds a 64-bits offset to a native pointer.
- /// </summary>
- /// <param name="pointer">Native pointer</param>
- /// <param name="offset">Offset to add</param>
- /// <returns>Native pointer with the added offset</returns>
- private IntPtr PtrAddr(IntPtr pointer, ulong offset)
- {
- return (IntPtr)(pointer.ToInt64() + (long)offset);
- }
-
- /// <summary>
- /// Frees the memory allocated for this memory block.
- /// </summary>
- /// <remarks>
- /// It's an error to use the memory block after disposal.
- /// </remarks>
- public void Dispose()
- {
- FreeMemory();
-
- GC.SuppressFinalize(this);
- }
-
- ~MemoryBlock() => FreeMemory();
-
- private void FreeMemory()
- {
- IntPtr ptr = Interlocked.Exchange(ref _pointer, IntPtr.Zero);
-
- // If pointer is null, the memory was already freed or never allocated.
- if (ptr != IntPtr.Zero)
- {
- if (_usesSharedMemory)
- {
- MemoryManagement.UnmapSharedMemory(ptr, Size);
- }
- else
- {
- MemoryManagement.Free(ptr, Size);
- }
- }
-
- if (!_isMirror)
- {
- IntPtr sharedMemory = Interlocked.Exchange(ref _sharedMemory, IntPtr.Zero);
-
- if (sharedMemory != IntPtr.Zero)
- {
- MemoryManagement.DestroySharedMemory(sharedMemory);
- }
- }
- }
-
- /// <summary>
- /// Checks if the specified memory allocation flags are supported on the current platform.
- /// </summary>
- /// <param name="flags">Flags to be checked</param>
- /// <returns>True if the platform supports all the flags, false otherwise</returns>
- public static bool SupportsFlags(MemoryAllocationFlags flags)
- {
- if (flags.HasFlag(MemoryAllocationFlags.ViewCompatible))
- {
- if (OperatingSystem.IsWindows())
- {
- return OperatingSystem.IsWindowsVersionAtLeast(10, 0, 17134);
- }
-
- return OperatingSystem.IsLinux() || OperatingSystem.IsMacOS();
- }
-
- return true;
- }
-
- public static ulong GetPageSize()
- {
- return (ulong)Environment.SystemPageSize;
- }
-
- private static void ThrowInvalidMemoryRegionException() => throw new InvalidMemoryRegionException();
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryConstants.cs b/Ryujinx.Memory/MemoryConstants.cs
deleted file mode 100644
index fc6f87e0..00000000
--- a/Ryujinx.Memory/MemoryConstants.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Ryujinx.Memory
-{
- static class MemoryConstants
- {
- public const int PageBits = 12;
- public const int PageSize = 1 << PageBits;
- public const int PageMask = PageSize - 1;
- }
-}
diff --git a/Ryujinx.Memory/MemoryManagement.cs b/Ryujinx.Memory/MemoryManagement.cs
deleted file mode 100644
index c4b5ac4c..00000000
--- a/Ryujinx.Memory/MemoryManagement.cs
+++ /dev/null
@@ -1,206 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- public static class MemoryManagement
- {
- public static IntPtr Allocate(ulong size, bool forJit)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.Allocate((IntPtr)size);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.Allocate(size, forJit);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static IntPtr Reserve(ulong size, bool forJit, bool viewCompatible)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.Reserve((IntPtr)size, viewCompatible);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.Reserve(size, forJit);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static bool Commit(IntPtr address, ulong size, bool forJit)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.Commit(address, (IntPtr)size);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.Commit(address, size, forJit);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static bool Decommit(IntPtr address, ulong size)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.Decommit(address, (IntPtr)size);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.Decommit(address, size);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr address, ulong size, MemoryBlock owner)
- {
- if (OperatingSystem.IsWindows())
- {
- MemoryManagementWindows.MapView(sharedMemory, srcOffset, address, (IntPtr)size, owner);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- MemoryManagementUnix.MapView(sharedMemory, srcOffset, address, size);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static void UnmapView(IntPtr sharedMemory, IntPtr address, ulong size, MemoryBlock owner)
- {
- if (OperatingSystem.IsWindows())
- {
- MemoryManagementWindows.UnmapView(sharedMemory, address, (IntPtr)size, owner);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- MemoryManagementUnix.UnmapView(address, size);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static void Reprotect(IntPtr address, ulong size, MemoryPermission permission, bool forView, bool throwOnFail)
- {
- bool result;
-
- if (OperatingSystem.IsWindows())
- {
- result = MemoryManagementWindows.Reprotect(address, (IntPtr)size, permission, forView);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- result = MemoryManagementUnix.Reprotect(address, size, permission);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
-
- if (!result && throwOnFail)
- {
- throw new MemoryProtectionException(permission);
- }
- }
-
- public static bool Free(IntPtr address, ulong size)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.Free(address, (IntPtr)size);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.Free(address);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static IntPtr CreateSharedMemory(ulong size, bool reserve)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.CreateSharedMemory((IntPtr)size, reserve);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.CreateSharedMemory(size, reserve);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static void DestroySharedMemory(IntPtr handle)
- {
- if (OperatingSystem.IsWindows())
- {
- MemoryManagementWindows.DestroySharedMemory(handle);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- MemoryManagementUnix.DestroySharedMemory(handle);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static IntPtr MapSharedMemory(IntPtr handle, ulong size)
- {
- if (OperatingSystem.IsWindows())
- {
- return MemoryManagementWindows.MapSharedMemory(handle);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- return MemoryManagementUnix.MapSharedMemory(handle, size);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
-
- public static void UnmapSharedMemory(IntPtr address, ulong size)
- {
- if (OperatingSystem.IsWindows())
- {
- MemoryManagementWindows.UnmapSharedMemory(address);
- }
- else if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
- {
- MemoryManagementUnix.UnmapSharedMemory(address, size);
- }
- else
- {
- throw new PlatformNotSupportedException();
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryManagementUnix.cs b/Ryujinx.Memory/MemoryManagementUnix.cs
deleted file mode 100644
index affcff92..00000000
--- a/Ryujinx.Memory/MemoryManagementUnix.cs
+++ /dev/null
@@ -1,200 +0,0 @@
-using System;
-using System.Collections.Concurrent;
-using System.Runtime.Versioning;
-using System.Text;
-
-using static Ryujinx.Memory.MemoryManagerUnixHelper;
-
-namespace Ryujinx.Memory
-{
- [SupportedOSPlatform("linux")]
- [SupportedOSPlatform("macos")]
- static class MemoryManagementUnix
- {
- private static readonly ConcurrentDictionary<IntPtr, ulong> _allocations = new ConcurrentDictionary<IntPtr, ulong>();
-
- public static IntPtr Allocate(ulong size, bool forJit)
- {
- return AllocateInternal(size, MmapProts.PROT_READ | MmapProts.PROT_WRITE, forJit);
- }
-
- public static IntPtr Reserve(ulong size, bool forJit)
- {
- return AllocateInternal(size, MmapProts.PROT_NONE, forJit);
- }
-
- private static IntPtr AllocateInternal(ulong size, MmapProts prot, bool forJit, bool shared = false)
- {
- MmapFlags flags = MmapFlags.MAP_ANONYMOUS;
-
- if (shared)
- {
- flags |= MmapFlags.MAP_SHARED | MmapFlags.MAP_UNLOCKED;
- }
- else
- {
- flags |= MmapFlags.MAP_PRIVATE;
- }
-
- if (prot == MmapProts.PROT_NONE)
- {
- flags |= MmapFlags.MAP_NORESERVE;
- }
-
- if (OperatingSystem.IsMacOSVersionAtLeast(10, 14) && forJit)
- {
- flags |= MmapFlags.MAP_JIT_DARWIN;
-
- if (prot == (MmapProts.PROT_READ | MmapProts.PROT_WRITE))
- {
- prot |= MmapProts.PROT_EXEC;
- }
- }
-
- IntPtr ptr = mmap(IntPtr.Zero, size, prot, flags, -1, 0);
-
- if (ptr == new IntPtr(-1L))
- {
- throw new OutOfMemoryException();
- }
-
- if (!_allocations.TryAdd(ptr, size))
- {
- // This should be impossible, kernel shouldn't return an already mapped address.
- throw new InvalidOperationException();
- }
-
- return ptr;
- }
-
- public static bool Commit(IntPtr address, ulong size, bool forJit)
- {
- MmapProts prot = MmapProts.PROT_READ | MmapProts.PROT_WRITE;
-
- if (OperatingSystem.IsMacOSVersionAtLeast(10, 14) && forJit)
- {
- prot |= MmapProts.PROT_EXEC;
- }
-
- return mprotect(address, size, prot) == 0;
- }
-
- public static bool Decommit(IntPtr address, ulong size)
- {
- // Must be writable for madvise to work properly.
- mprotect(address, size, MmapProts.PROT_READ | MmapProts.PROT_WRITE);
-
- madvise(address, size, MADV_REMOVE);
-
- return mprotect(address, size, MmapProts.PROT_NONE) == 0;
- }
-
- public static bool Reprotect(IntPtr address, ulong size, MemoryPermission permission)
- {
- return mprotect(address, size, GetProtection(permission)) == 0;
- }
-
- private static MmapProts GetProtection(MemoryPermission permission)
- {
- return permission switch
- {
- MemoryPermission.None => MmapProts.PROT_NONE,
- MemoryPermission.Read => MmapProts.PROT_READ,
- MemoryPermission.ReadAndWrite => MmapProts.PROT_READ | MmapProts.PROT_WRITE,
- MemoryPermission.ReadAndExecute => MmapProts.PROT_READ | MmapProts.PROT_EXEC,
- MemoryPermission.ReadWriteExecute => MmapProts.PROT_READ | MmapProts.PROT_WRITE | MmapProts.PROT_EXEC,
- MemoryPermission.Execute => MmapProts.PROT_EXEC,
- _ => throw new MemoryProtectionException(permission)
- };
- }
-
- public static bool Free(IntPtr address)
- {
- if (_allocations.TryRemove(address, out ulong size))
- {
- return munmap(address, size) == 0;
- }
-
- return false;
- }
-
- public static bool Unmap(IntPtr address, ulong size)
- {
- return munmap(address, size) == 0;
- }
-
- public unsafe static IntPtr CreateSharedMemory(ulong size, bool reserve)
- {
- int fd;
-
- if (OperatingSystem.IsMacOS())
- {
- byte[] memName = Encoding.ASCII.GetBytes("Ryujinx-XXXXXX");
-
- fixed (byte* pMemName = memName)
- {
- fd = shm_open((IntPtr)pMemName, 0x2 | 0x200 | 0x800 | 0x400, 384); // O_RDWR | O_CREAT | O_EXCL | O_TRUNC, 0600
- if (fd == -1)
- {
- throw new OutOfMemoryException();
- }
-
- if (shm_unlink((IntPtr)pMemName) != 0)
- {
- throw new OutOfMemoryException();
- }
- }
- }
- else
- {
- byte[] fileName = Encoding.ASCII.GetBytes("/dev/shm/Ryujinx-XXXXXX");
-
- fixed (byte* pFileName = fileName)
- {
- fd = mkstemp((IntPtr)pFileName);
- if (fd == -1)
- {
- throw new OutOfMemoryException();
- }
-
- if (unlink((IntPtr)pFileName) != 0)
- {
- throw new OutOfMemoryException();
- }
- }
- }
-
- if (ftruncate(fd, (IntPtr)size) != 0)
- {
- throw new OutOfMemoryException();
- }
-
- return (IntPtr)fd;
- }
-
- public static void DestroySharedMemory(IntPtr handle)
- {
- close((int)handle);
- }
-
- public static IntPtr MapSharedMemory(IntPtr handle, ulong size)
- {
- return mmap(IntPtr.Zero, size, MmapProts.PROT_READ | MmapProts.PROT_WRITE, MmapFlags.MAP_SHARED, (int)handle, 0);
- }
-
- public static void UnmapSharedMemory(IntPtr address, ulong size)
- {
- munmap(address, size);
- }
-
- public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, ulong size)
- {
- mmap(location, size, MmapProts.PROT_READ | MmapProts.PROT_WRITE, MmapFlags.MAP_FIXED | MmapFlags.MAP_SHARED, (int)sharedMemory, (long)srcOffset);
- }
-
- public static void UnmapView(IntPtr location, ulong size)
- {
- mmap(location, size, MmapProts.PROT_NONE, MmapFlags.MAP_FIXED | MmapFlags.MAP_PRIVATE | MmapFlags.MAP_ANONYMOUS | MmapFlags.MAP_NORESERVE, -1, 0);
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryManagementWindows.cs b/Ryujinx.Memory/MemoryManagementWindows.cs
deleted file mode 100644
index 2f89a921..00000000
--- a/Ryujinx.Memory/MemoryManagementWindows.cs
+++ /dev/null
@@ -1,144 +0,0 @@
-using Ryujinx.Memory.WindowsShared;
-using System;
-using System.Runtime.Versioning;
-
-namespace Ryujinx.Memory
-{
- [SupportedOSPlatform("windows")]
- static class MemoryManagementWindows
- {
- public const int PageSize = 0x1000;
-
- private static readonly PlaceholderManager _placeholders = new PlaceholderManager();
-
- public static IntPtr Allocate(IntPtr size)
- {
- return AllocateInternal(size, AllocationType.Reserve | AllocationType.Commit);
- }
-
- public static IntPtr Reserve(IntPtr size, bool viewCompatible)
- {
- if (viewCompatible)
- {
- IntPtr baseAddress = AllocateInternal2(size, AllocationType.Reserve | AllocationType.ReservePlaceholder);
-
- _placeholders.ReserveRange((ulong)baseAddress, (ulong)size);
-
- return baseAddress;
- }
-
- return AllocateInternal(size, AllocationType.Reserve);
- }
-
- private static IntPtr AllocateInternal(IntPtr size, AllocationType flags = 0)
- {
- IntPtr ptr = WindowsApi.VirtualAlloc(IntPtr.Zero, size, flags, MemoryProtection.ReadWrite);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- private static IntPtr AllocateInternal2(IntPtr size, AllocationType flags = 0)
- {
- IntPtr ptr = WindowsApi.VirtualAlloc2(WindowsApi.CurrentProcessHandle, IntPtr.Zero, size, flags, MemoryProtection.NoAccess, IntPtr.Zero, 0);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- public static bool Commit(IntPtr location, IntPtr size)
- {
- return WindowsApi.VirtualAlloc(location, size, AllocationType.Commit, MemoryProtection.ReadWrite) != IntPtr.Zero;
- }
-
- public static bool Decommit(IntPtr location, IntPtr size)
- {
- return WindowsApi.VirtualFree(location, size, AllocationType.Decommit);
- }
-
- public static void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- _placeholders.MapView(sharedMemory, srcOffset, location, size, owner);
- }
-
- public static void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- _placeholders.UnmapView(sharedMemory, location, size, owner);
- }
-
- public static bool Reprotect(IntPtr address, IntPtr size, MemoryPermission permission, bool forView)
- {
- if (forView)
- {
- return _placeholders.ReprotectView(address, size, permission);
- }
- else
- {
- return WindowsApi.VirtualProtect(address, size, WindowsApi.GetProtection(permission), out _);
- }
- }
-
- public static bool Free(IntPtr address, IntPtr size)
- {
- _placeholders.UnreserveRange((ulong)address, (ulong)size);
-
- return WindowsApi.VirtualFree(address, IntPtr.Zero, AllocationType.Release);
- }
-
- public static IntPtr CreateSharedMemory(IntPtr size, bool reserve)
- {
- var prot = reserve ? FileMapProtection.SectionReserve : FileMapProtection.SectionCommit;
-
- IntPtr handle = WindowsApi.CreateFileMapping(
- WindowsApi.InvalidHandleValue,
- IntPtr.Zero,
- FileMapProtection.PageReadWrite | prot,
- (uint)(size.ToInt64() >> 32),
- (uint)size.ToInt64(),
- null);
-
- if (handle == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return handle;
- }
-
- public static void DestroySharedMemory(IntPtr handle)
- {
- if (!WindowsApi.CloseHandle(handle))
- {
- throw new ArgumentException("Invalid handle.", nameof(handle));
- }
- }
-
- public static IntPtr MapSharedMemory(IntPtr handle)
- {
- IntPtr ptr = WindowsApi.MapViewOfFile(handle, 4 | 2, 0, 0, IntPtr.Zero);
-
- if (ptr == IntPtr.Zero)
- {
- throw new OutOfMemoryException();
- }
-
- return ptr;
- }
-
- public static void UnmapSharedMemory(IntPtr address)
- {
- if (!WindowsApi.UnmapViewOfFile(address))
- {
- throw new ArgumentException("Invalid address.", nameof(address));
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryManagerUnixHelper.cs b/Ryujinx.Memory/MemoryManagerUnixHelper.cs
deleted file mode 100644
index 204f1ca4..00000000
--- a/Ryujinx.Memory/MemoryManagerUnixHelper.cs
+++ /dev/null
@@ -1,167 +0,0 @@
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Memory
-{
- public static partial class MemoryManagerUnixHelper
- {
- [Flags]
- public enum MmapProts : uint
- {
- PROT_NONE = 0,
- PROT_READ = 1,
- PROT_WRITE = 2,
- PROT_EXEC = 4
- }
-
- [Flags]
- public enum MmapFlags : uint
- {
- MAP_SHARED = 1,
- MAP_PRIVATE = 2,
- MAP_ANONYMOUS = 4,
- MAP_NORESERVE = 8,
- MAP_FIXED = 16,
- MAP_UNLOCKED = 32,
- MAP_JIT_DARWIN = 0x800
- }
-
- [Flags]
- public enum OpenFlags : uint
- {
- O_RDONLY = 0,
- O_WRONLY = 1,
- O_RDWR = 2,
- O_CREAT = 4,
- O_EXCL = 8,
- O_NOCTTY = 16,
- O_TRUNC = 32,
- O_APPEND = 64,
- O_NONBLOCK = 128,
- O_SYNC = 256,
- }
-
- private const int MAP_ANONYMOUS_LINUX_GENERIC = 0x20;
- private const int MAP_NORESERVE_LINUX_GENERIC = 0x4000;
- private const int MAP_UNLOCKED_LINUX_GENERIC = 0x80000;
-
- private const int MAP_NORESERVE_DARWIN = 0x40;
- private const int MAP_ANONYMOUS_DARWIN = 0x1000;
-
- public const int MADV_DONTNEED = 4;
- public const int MADV_REMOVE = 9;
-
- [LibraryImport("libc", EntryPoint = "mmap", SetLastError = true)]
- private static partial IntPtr Internal_mmap(IntPtr address, ulong length, MmapProts prot, int flags, int fd, long offset);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int mprotect(IntPtr address, ulong length, MmapProts prot);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int munmap(IntPtr address, ulong length);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial IntPtr mremap(IntPtr old_address, ulong old_size, ulong new_size, int flags, IntPtr new_address);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int madvise(IntPtr address, ulong size, int advice);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int mkstemp(IntPtr template);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int unlink(IntPtr pathname);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int ftruncate(int fildes, IntPtr length);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int close(int fd);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int shm_open(IntPtr name, int oflag, uint mode);
-
- [LibraryImport("libc", SetLastError = true)]
- public static partial int shm_unlink(IntPtr name);
-
- private static int MmapFlagsToSystemFlags(MmapFlags flags)
- {
- int result = 0;
-
- if (flags.HasFlag(MmapFlags.MAP_SHARED))
- {
- result |= (int)MmapFlags.MAP_SHARED;
- }
-
- if (flags.HasFlag(MmapFlags.MAP_PRIVATE))
- {
- result |= (int)MmapFlags.MAP_PRIVATE;
- }
-
- if (flags.HasFlag(MmapFlags.MAP_FIXED))
- {
- result |= (int)MmapFlags.MAP_FIXED;
- }
-
- if (flags.HasFlag(MmapFlags.MAP_ANONYMOUS))
- {
- if (OperatingSystem.IsLinux())
- {
- result |= MAP_ANONYMOUS_LINUX_GENERIC;
- }
- else if (OperatingSystem.IsMacOS())
- {
- result |= MAP_ANONYMOUS_DARWIN;
- }
- else
- {
- throw new NotImplementedException();
- }
- }
-
- if (flags.HasFlag(MmapFlags.MAP_NORESERVE))
- {
- if (OperatingSystem.IsLinux())
- {
- result |= MAP_NORESERVE_LINUX_GENERIC;
- }
- else if (OperatingSystem.IsMacOS())
- {
- result |= MAP_NORESERVE_DARWIN;
- }
- else
- {
- throw new NotImplementedException();
- }
- }
-
- if (flags.HasFlag(MmapFlags.MAP_UNLOCKED))
- {
- if (OperatingSystem.IsLinux())
- {
- result |= MAP_UNLOCKED_LINUX_GENERIC;
- }
- else if (OperatingSystem.IsMacOS())
- {
- // FIXME: Doesn't exist on Darwin
- }
- else
- {
- throw new NotImplementedException();
- }
- }
-
- if (flags.HasFlag(MmapFlags.MAP_JIT_DARWIN) && OperatingSystem.IsMacOSVersionAtLeast(10, 14))
- {
- result |= (int)MmapFlags.MAP_JIT_DARWIN;
- }
-
- return result;
- }
-
- public static IntPtr mmap(IntPtr address, ulong length, MmapProts prot, MmapFlags flags, int fd, long offset)
- {
- return Internal_mmap(address, length, prot, MmapFlagsToSystemFlags(flags), fd, offset);
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryMapFlags.cs b/Ryujinx.Memory/MemoryMapFlags.cs
deleted file mode 100644
index b4c74c8c..00000000
--- a/Ryujinx.Memory/MemoryMapFlags.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Flags that indicate how the host memory should be mapped.
- /// </summary>
- [Flags]
- public enum MemoryMapFlags
- {
- /// <summary>
- /// No mapping flags.
- /// </summary>
- None = 0,
-
- /// <summary>
- /// Indicates that the implementation is free to ignore the specified backing memory offset
- /// and allocate its own private storage for the mapping.
- /// This allows some mappings that would otherwise fail due to host platform restrictions to succeed.
- /// </summary>
- Private = 1 << 0
- }
-}
diff --git a/Ryujinx.Memory/MemoryNotContiguousException.cs b/Ryujinx.Memory/MemoryNotContiguousException.cs
deleted file mode 100644
index 3106955b..00000000
--- a/Ryujinx.Memory/MemoryNotContiguousException.cs
+++ /dev/null
@@ -1,19 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- public class MemoryNotContiguousException : Exception
- {
- public MemoryNotContiguousException() : base("The specified memory region is not contiguous.")
- {
- }
-
- public MemoryNotContiguousException(string message) : base(message)
- {
- }
-
- public MemoryNotContiguousException(string message, Exception innerException) : base(message, innerException)
- {
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/MemoryPermission.cs b/Ryujinx.Memory/MemoryPermission.cs
deleted file mode 100644
index 8c3e33cf..00000000
--- a/Ryujinx.Memory/MemoryPermission.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- /// <summary>
- /// Memory access permission control.
- /// </summary>
- [Flags]
- public enum MemoryPermission
- {
- /// <summary>
- /// No access is allowed on the memory region.
- /// </summary>
- None = 0,
-
- /// <summary>
- /// Allow reads on the memory region.
- /// </summary>
- Read = 1 << 0,
-
- /// <summary>
- /// Allow writes on the memory region.
- /// </summary>
- Write = 1 << 1,
-
- /// <summary>
- /// Allow code execution on the memory region.
- /// </summary>
- Execute = 1 << 2,
-
- /// <summary>
- /// Allow reads and writes on the memory region.
- /// </summary>
- ReadAndWrite = Read | Write,
-
- /// <summary>
- /// Allow reads and code execution on the memory region.
- /// </summary>
- ReadAndExecute = Read | Execute,
-
- /// <summary>
- /// Allow reads, writes, and code execution on the memory region.
- /// </summary>
- ReadWriteExecute = Read | Write | Execute,
-
- /// <summary>
- /// Indicates an invalid protection.
- /// </summary>
- Invalid = 255
- }
-}
diff --git a/Ryujinx.Memory/MemoryProtectionException.cs b/Ryujinx.Memory/MemoryProtectionException.cs
deleted file mode 100644
index 27e950a1..00000000
--- a/Ryujinx.Memory/MemoryProtectionException.cs
+++ /dev/null
@@ -1,23 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- class MemoryProtectionException : Exception
- {
- public MemoryProtectionException()
- {
- }
-
- public MemoryProtectionException(MemoryPermission permission) : base($"Failed to set memory protection to \"{permission}\".")
- {
- }
-
- public MemoryProtectionException(string message) : base(message)
- {
- }
-
- public MemoryProtectionException(string message, Exception innerException) : base(message, innerException)
- {
- }
- }
-}
diff --git a/Ryujinx.Memory/NativeMemoryManager.cs b/Ryujinx.Memory/NativeMemoryManager.cs
deleted file mode 100644
index d1757935..00000000
--- a/Ryujinx.Memory/NativeMemoryManager.cs
+++ /dev/null
@@ -1,42 +0,0 @@
-using System;
-using System.Buffers;
-
-namespace Ryujinx.Memory
-{
- public unsafe class NativeMemoryManager<T> : MemoryManager<T> where T : unmanaged
- {
- private readonly T* _pointer;
- private readonly int _length;
-
- public NativeMemoryManager(T* pointer, int length)
- {
- _pointer = pointer;
- _length = length;
- }
-
- public override Span<T> GetSpan()
- {
- return new Span<T>((void*)_pointer, _length);
- }
-
- public override MemoryHandle Pin(int elementIndex = 0)
- {
- if ((uint)elementIndex >= _length)
- {
- throw new ArgumentOutOfRangeException(nameof(elementIndex));
- }
-
- return new MemoryHandle((void*)(_pointer + elementIndex));
- }
-
- public override void Unpin()
- {
- // No need to do anything as pointer already points no native memory, not GC tracked.
- }
-
- protected override void Dispose(bool disposing)
- {
- // Nothing to dispose, MemoryBlock still owns the memory.
- }
- }
-}
diff --git a/Ryujinx.Memory/PageTable.cs b/Ryujinx.Memory/PageTable.cs
deleted file mode 100644
index 8fdedd4f..00000000
--- a/Ryujinx.Memory/PageTable.cs
+++ /dev/null
@@ -1,141 +0,0 @@
-namespace Ryujinx.Memory
-{
- public class PageTable<T> where T : unmanaged
- {
- public const int PageBits = 12;
- public const int PageSize = 1 << PageBits;
- public const int PageMask = PageSize - 1;
-
- private const int PtLevelBits = 9; // 9 * 4 + 12 = 48 (max address space size)
- private const int PtLevelSize = 1 << PtLevelBits;
- private const int PtLevelMask = PtLevelSize - 1;
-
- private readonly T[][][][] _pageTable;
-
- public PageTable()
- {
- _pageTable = new T[PtLevelSize][][][];
- }
-
- public T Read(ulong va)
- {
- int l3 = (int)(va >> PageBits) & PtLevelMask;
- int l2 = (int)(va >> (PageBits + PtLevelBits)) & PtLevelMask;
- int l1 = (int)(va >> (PageBits + PtLevelBits * 2)) & PtLevelMask;
- int l0 = (int)(va >> (PageBits + PtLevelBits * 3)) & PtLevelMask;
-
- if (_pageTable[l0] == null)
- {
- return default;
- }
-
- if (_pageTable[l0][l1] == null)
- {
- return default;
- }
-
- if (_pageTable[l0][l1][l2] == null)
- {
- return default;
- }
-
- return _pageTable[l0][l1][l2][l3];
- }
-
- public void Map(ulong va, T value)
- {
- int l3 = (int)(va >> PageBits) & PtLevelMask;
- int l2 = (int)(va >> (PageBits + PtLevelBits)) & PtLevelMask;
- int l1 = (int)(va >> (PageBits + PtLevelBits * 2)) & PtLevelMask;
- int l0 = (int)(va >> (PageBits + PtLevelBits * 3)) & PtLevelMask;
-
- if (_pageTable[l0] == null)
- {
- _pageTable[l0] = new T[PtLevelSize][][];
- }
-
- if (_pageTable[l0][l1] == null)
- {
- _pageTable[l0][l1] = new T[PtLevelSize][];
- }
-
- if (_pageTable[l0][l1][l2] == null)
- {
- _pageTable[l0][l1][l2] = new T[PtLevelSize];
- }
-
- _pageTable[l0][l1][l2][l3] = value;
- }
-
- public void Unmap(ulong va)
- {
- int l3 = (int)(va >> PageBits) & PtLevelMask;
- int l2 = (int)(va >> (PageBits + PtLevelBits)) & PtLevelMask;
- int l1 = (int)(va >> (PageBits + PtLevelBits * 2)) & PtLevelMask;
- int l0 = (int)(va >> (PageBits + PtLevelBits * 3)) & PtLevelMask;
-
- if (_pageTable[l0] == null)
- {
- return;
- }
-
- if (_pageTable[l0][l1] == null)
- {
- return;
- }
-
- if (_pageTable[l0][l1][l2] == null)
- {
- return;
- }
-
- _pageTable[l0][l1][l2][l3] = default;
-
- bool empty = true;
-
- for (int i = 0; i < _pageTable[l0][l1][l2].Length; i++)
- {
- empty &= _pageTable[l0][l1][l2][i].Equals(default);
- }
-
- if (empty)
- {
- _pageTable[l0][l1][l2] = null;
-
- RemoveIfAllNull(l0, l1);
- }
- }
-
- private void RemoveIfAllNull(int l0, int l1)
- {
- bool empty = true;
-
- for (int i = 0; i < _pageTable[l0][l1].Length; i++)
- {
- empty &= (_pageTable[l0][l1][i] == null);
- }
-
- if (empty)
- {
- _pageTable[l0][l1] = null;
-
- RemoveIfAllNull(l0);
- }
- }
-
- private void RemoveIfAllNull(int l0)
- {
- bool empty = true;
-
- for (int i = 0; i < _pageTable[l0].Length; i++)
- {
- empty &= (_pageTable[l0][i] == null);
- }
-
- if (empty)
- {
- _pageTable[l0] = null;
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/HostMemoryRange.cs b/Ryujinx.Memory/Range/HostMemoryRange.cs
deleted file mode 100644
index 79c649d8..00000000
--- a/Ryujinx.Memory/Range/HostMemoryRange.cs
+++ /dev/null
@@ -1,71 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Range of memory composed of an address and size.
- /// </summary>
- public struct HostMemoryRange : IEquatable<HostMemoryRange>
- {
- /// <summary>
- /// An empty memory range, with a null address and zero size.
- /// </summary>
- public static HostMemoryRange Empty => new HostMemoryRange(0, 0);
-
- /// <summary>
- /// Start address of the range.
- /// </summary>
- public nuint Address { get; }
-
- /// <summary>
- /// Size of the range in bytes.
- /// </summary>
- public ulong Size { get; }
-
- /// <summary>
- /// Address where the range ends (exclusive).
- /// </summary>
- public nuint EndAddress => Address + (nuint)Size;
-
- /// <summary>
- /// Creates a new memory range with the specified address and size.
- /// </summary>
- /// <param name="address">Start address</param>
- /// <param name="size">Size in bytes</param>
- public HostMemoryRange(nuint address, ulong size)
- {
- Address = address;
- Size = size;
- }
-
- /// <summary>
- /// Checks if the range overlaps with another.
- /// </summary>
- /// <param name="other">The other range to check for overlap</param>
- /// <returns>True if the ranges overlap, false otherwise</returns>
- public bool OverlapsWith(HostMemoryRange other)
- {
- nuint thisAddress = Address;
- nuint thisEndAddress = EndAddress;
- nuint otherAddress = other.Address;
- nuint otherEndAddress = other.EndAddress;
-
- return thisAddress < otherEndAddress && otherAddress < thisEndAddress;
- }
-
- public override bool Equals(object obj)
- {
- return obj is HostMemoryRange other && Equals(other);
- }
-
- public bool Equals(HostMemoryRange other)
- {
- return Address == other.Address && Size == other.Size;
- }
-
- public override int GetHashCode()
- {
- return HashCode.Combine(Address, Size);
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/IMultiRangeItem.cs b/Ryujinx.Memory/Range/IMultiRangeItem.cs
deleted file mode 100644
index e95a69fc..00000000
--- a/Ryujinx.Memory/Range/IMultiRangeItem.cs
+++ /dev/null
@@ -1,9 +0,0 @@
-namespace Ryujinx.Memory.Range
-{
- public interface IMultiRangeItem
- {
- MultiRange Range { get; }
-
- ulong BaseAddress => Range.GetSubRange(0).Address;
- }
-}
diff --git a/Ryujinx.Memory/Range/INonOverlappingRange.cs b/Ryujinx.Memory/Range/INonOverlappingRange.cs
deleted file mode 100644
index 1886eb1d..00000000
--- a/Ryujinx.Memory/Range/INonOverlappingRange.cs
+++ /dev/null
@@ -1,16 +0,0 @@
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Range of memory that can be split in two.
- /// </summary>
- interface INonOverlappingRange : IRange
- {
- /// <summary>
- /// Split this region into two, around the specified address.
- /// This region is updated to end at the split address, and a new region is created to represent past that point.
- /// </summary>
- /// <param name="splitAddress">Address to split the region around</param>
- /// <returns>The second part of the split region, with start address at the given split.</returns>
- public INonOverlappingRange Split(ulong splitAddress);
- }
-}
diff --git a/Ryujinx.Memory/Range/IRange.cs b/Ryujinx.Memory/Range/IRange.cs
deleted file mode 100644
index 1685396d..00000000
--- a/Ryujinx.Memory/Range/IRange.cs
+++ /dev/null
@@ -1,31 +0,0 @@
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Range of memory.
- /// </summary>
- public interface IRange
- {
- /// <summary>
- /// Base address.
- /// </summary>
- ulong Address { get; }
-
- /// <summary>
- /// Size of the range.
- /// </summary>
- ulong Size { get; }
-
- /// <summary>
- /// End address.
- /// </summary>
- ulong EndAddress { get; }
-
- /// <summary>
- /// Check if this range overlaps with another.
- /// </summary>
- /// <param name="address">Base address</param>
- /// <param name="size">Size of the range</param>
- /// <returns>True if overlapping, false otherwise</returns>
- bool OverlapsWith(ulong address, ulong size);
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/Range/MemoryRange.cs b/Ryujinx.Memory/Range/MemoryRange.cs
deleted file mode 100644
index 7465fbcb..00000000
--- a/Ryujinx.Memory/Range/MemoryRange.cs
+++ /dev/null
@@ -1,61 +0,0 @@
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Range of memory composed of an address and size.
- /// </summary>
- public readonly record struct MemoryRange
- {
- /// <summary>
- /// An empty memory range, with a null address and zero size.
- /// </summary>
- public static MemoryRange Empty => new MemoryRange(0UL, 0);
-
- /// <summary>
- /// Start address of the range.
- /// </summary>
- public ulong Address { get; }
-
- /// <summary>
- /// Size of the range in bytes.
- /// </summary>
- public ulong Size { get; }
-
- /// <summary>
- /// Address where the range ends (exclusive).
- /// </summary>
- public ulong EndAddress => Address + Size;
-
- /// <summary>
- /// Creates a new memory range with the specified address and size.
- /// </summary>
- /// <param name="address">Start address</param>
- /// <param name="size">Size in bytes</param>
- public MemoryRange(ulong address, ulong size)
- {
- Address = address;
- Size = size;
- }
-
- /// <summary>
- /// Checks if the range overlaps with another.
- /// </summary>
- /// <param name="other">The other range to check for overlap</param>
- /// <returns>True if the ranges overlap, false otherwise</returns>
- public bool OverlapsWith(MemoryRange other)
- {
- ulong thisAddress = Address;
- ulong thisEndAddress = EndAddress;
- ulong otherAddress = other.Address;
- ulong otherEndAddress = other.EndAddress;
-
- // If any of the ranges if invalid (address + size overflows),
- // then they are never considered to overlap.
- if (thisEndAddress < thisAddress || otherEndAddress < otherAddress)
- {
- return false;
- }
-
- return thisAddress < otherEndAddress && otherAddress < thisEndAddress;
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/MultiRange.cs b/Ryujinx.Memory/Range/MultiRange.cs
deleted file mode 100644
index 9dbd76ec..00000000
--- a/Ryujinx.Memory/Range/MultiRange.cs
+++ /dev/null
@@ -1,323 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Sequence of physical memory regions that a single non-contiguous virtual memory region maps to.
- /// </summary>
- public readonly struct MultiRange : IEquatable<MultiRange>
- {
- private const ulong InvalidAddress = ulong.MaxValue;
-
- private readonly MemoryRange _singleRange;
- private readonly MemoryRange[] _ranges;
-
- private bool HasSingleRange => _ranges == null;
-
- /// <summary>
- /// Total of physical sub-ranges on the virtual memory region.
- /// </summary>
- public int Count => HasSingleRange ? 1 : _ranges.Length;
-
- /// <summary>
- /// Creates a new multi-range with a single physical region.
- /// </summary>
- /// <param name="address">Start address of the region</param>
- /// <param name="size">Size of the region in bytes</param>
- public MultiRange(ulong address, ulong size)
- {
- _singleRange = new MemoryRange(address, size);
- _ranges = null;
- }
-
- /// <summary>
- /// Creates a new multi-range with multiple physical regions.
- /// </summary>
- /// <param name="ranges">Array of physical regions</param>
- /// <exception cref="ArgumentNullException"><paramref name="ranges"/> is null</exception>
- public MultiRange(MemoryRange[] ranges)
- {
- _singleRange = MemoryRange.Empty;
- _ranges = ranges ?? throw new ArgumentNullException(nameof(ranges));
- }
-
- /// <summary>
- /// Gets a slice of the multi-range.
- /// </summary>
- /// <param name="offset">Offset of the slice into the multi-range in bytes</param>
- /// <param name="size">Size of the slice in bytes</param>
- /// <returns>A new multi-range representing the given slice of this one</returns>
- public MultiRange Slice(ulong offset, ulong size)
- {
- if (HasSingleRange)
- {
- if (_singleRange.Size - offset < size)
- {
- throw new ArgumentOutOfRangeException(nameof(size));
- }
-
- return new MultiRange(_singleRange.Address + offset, size);
- }
- else
- {
- var ranges = new List<MemoryRange>();
-
- foreach (MemoryRange range in _ranges)
- {
- if ((long)offset <= 0)
- {
- ranges.Add(new MemoryRange(range.Address, Math.Min(size, range.Size)));
- size -= range.Size;
- }
- else if (offset < range.Size)
- {
- ulong sliceSize = Math.Min(size, range.Size - offset);
-
- if (range.Address == InvalidAddress)
- {
- ranges.Add(new MemoryRange(range.Address, sliceSize));
- }
- else
- {
- ranges.Add(new MemoryRange(range.Address + offset, sliceSize));
- }
-
- size -= sliceSize;
- }
-
- if ((long)size <= 0)
- {
- break;
- }
-
- offset -= range.Size;
- }
-
- return new MultiRange(ranges.ToArray());
- }
- }
-
- /// <summary>
- /// Gets the physical region at the specified index.
- /// </summary>
- /// <param name="index">Index of the physical region</param>
- /// <returns>Region at the index specified</returns>
- /// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is invalid</exception>
- public MemoryRange GetSubRange(int index)
- {
- if (HasSingleRange)
- {
- if (index != 0)
- {
- throw new ArgumentOutOfRangeException(nameof(index));
- }
-
- return _singleRange;
- }
- else
- {
- if ((uint)index >= _ranges.Length)
- {
- throw new ArgumentOutOfRangeException(nameof(index));
- }
-
- return _ranges[index];
- }
- }
-
- /// <summary>
- /// Gets the physical region at the specified index, without explicit bounds checking.
- /// </summary>
- /// <param name="index">Index of the physical region</param>
- /// <returns>Region at the index specified</returns>
- private MemoryRange GetSubRangeUnchecked(int index)
- {
- return HasSingleRange ? _singleRange : _ranges[index];
- }
-
- /// <summary>
- /// Check if two multi-ranges overlap with each other.
- /// </summary>
- /// <param name="other">Other multi-range to check for overlap</param>
- /// <returns>True if any sub-range overlaps, false otherwise</returns>
- public bool OverlapsWith(MultiRange other)
- {
- if (HasSingleRange && other.HasSingleRange)
- {
- return _singleRange.OverlapsWith(other._singleRange);
- }
- else
- {
- for (int i = 0; i < Count; i++)
- {
- MemoryRange currentRange = GetSubRangeUnchecked(i);
-
- for (int j = 0; j < other.Count; j++)
- {
- if (currentRange.OverlapsWith(other.GetSubRangeUnchecked(j)))
- {
- return true;
- }
- }
- }
- }
-
- return false;
- }
-
- /// <summary>
- /// Checks if a given multi-range is fully contained inside another.
- /// </summary>
- /// <param name="other">Multi-range to be checked</param>
- /// <returns>True if all the sub-ranges on <paramref name="other"/> are contained inside the multi-range, with the same order, false otherwise</returns>
- public bool Contains(MultiRange other)
- {
- return FindOffset(other) >= 0;
- }
-
- /// <summary>
- /// Calculates the offset of a given multi-range inside another, when the multi-range is fully contained
- /// inside the other multi-range, otherwise returns -1.
- /// </summary>
- /// <param name="other">Multi-range that should be fully contained inside this one</param>
- /// <returns>Offset in bytes if fully contained, otherwise -1</returns>
- public int FindOffset(MultiRange other)
- {
- int thisCount = Count;
- int otherCount = other.Count;
-
- if (thisCount == 1 && otherCount == 1)
- {
- MemoryRange otherFirstRange = other.GetSubRangeUnchecked(0);
- MemoryRange currentFirstRange = GetSubRangeUnchecked(0);
-
- if (otherFirstRange.Address >= currentFirstRange.Address &&
- otherFirstRange.EndAddress <= currentFirstRange.EndAddress)
- {
- return (int)(otherFirstRange.Address - currentFirstRange.Address);
- }
- }
- else if (thisCount >= otherCount)
- {
- ulong baseOffset = 0;
-
- MemoryRange otherFirstRange = other.GetSubRangeUnchecked(0);
- MemoryRange otherLastRange = other.GetSubRangeUnchecked(otherCount - 1);
-
- for (int i = 0; i < (thisCount - otherCount) + 1; baseOffset += GetSubRangeUnchecked(i).Size, i++)
- {
- MemoryRange currentFirstRange = GetSubRangeUnchecked(i);
- MemoryRange currentLastRange = GetSubRangeUnchecked(i + otherCount - 1);
-
- if (otherCount > 1)
- {
- if (otherFirstRange.Address < currentFirstRange.Address ||
- otherFirstRange.EndAddress != currentFirstRange.EndAddress)
- {
- continue;
- }
-
- if (otherLastRange.Address != currentLastRange.Address ||
- otherLastRange.EndAddress > currentLastRange.EndAddress)
- {
- continue;
- }
-
- bool fullMatch = true;
-
- for (int j = 1; j < otherCount - 1; j++)
- {
- if (!GetSubRangeUnchecked(i + j).Equals(other.GetSubRangeUnchecked(j)))
- {
- fullMatch = false;
- break;
- }
- }
-
- if (!fullMatch)
- {
- continue;
- }
- }
- else if (currentFirstRange.Address > otherFirstRange.Address ||
- currentFirstRange.EndAddress < otherFirstRange.EndAddress)
- {
- continue;
- }
-
- return (int)(baseOffset + (otherFirstRange.Address - currentFirstRange.Address));
- }
- }
-
- return -1;
- }
-
- /// <summary>
- /// Gets the total size of all sub-ranges in bytes.
- /// </summary>
- /// <returns>Total size in bytes</returns>
- public ulong GetSize()
- {
- if (HasSingleRange)
- {
- return _singleRange.Size;
- }
-
- ulong sum = 0;
-
- foreach (MemoryRange range in _ranges)
- {
- sum += range.Size;
- }
-
- return sum;
- }
-
- public override bool Equals(object obj)
- {
- return obj is MultiRange other && Equals(other);
- }
-
- public bool Equals(MultiRange other)
- {
- if (HasSingleRange && other.HasSingleRange)
- {
- return _singleRange.Equals(other._singleRange);
- }
-
- int thisCount = Count;
- if (thisCount != other.Count)
- {
- return false;
- }
-
- for (int i = 0; i < thisCount; i++)
- {
- if (!GetSubRangeUnchecked(i).Equals(other.GetSubRangeUnchecked(i)))
- {
- return false;
- }
- }
-
- return true;
- }
-
- public override int GetHashCode()
- {
- if (HasSingleRange)
- {
- return _singleRange.GetHashCode();
- }
-
- HashCode hash = new HashCode();
-
- foreach (MemoryRange range in _ranges)
- {
- hash.Add(range);
- }
-
- return hash.ToHashCode();
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/MultiRangeList.cs b/Ryujinx.Memory/Range/MultiRangeList.cs
deleted file mode 100644
index 5131889f..00000000
--- a/Ryujinx.Memory/Range/MultiRangeList.cs
+++ /dev/null
@@ -1,210 +0,0 @@
-using Ryujinx.Common.Collections;
-using System.Collections;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory.Range
-{
- public class MultiRangeList<T> : IEnumerable<T> where T : IMultiRangeItem
- {
- private readonly IntervalTree<ulong, T> _items;
-
- public int Count { get; private set; }
-
- /// <summary>
- /// Creates a new range list.
- /// </summary>
- public MultiRangeList()
- {
- _items = new IntervalTree<ulong, T>();
- }
-
- /// <summary>
- /// Adds a new item to the list.
- /// </summary>
- /// <param name="item">The item to be added</param>
- public void Add(T item)
- {
- MultiRange range = item.Range;
-
- for (int i = 0; i < range.Count; i++)
- {
- var subrange = range.GetSubRange(i);
-
- if (IsInvalid(ref subrange))
- {
- continue;
- }
-
- _items.Add(subrange.Address, subrange.EndAddress, item);
- }
-
- Count++;
- }
-
- /// <summary>
- /// Removes an item from the list.
- /// </summary>
- /// <param name="item">The item to be removed</param>
- /// <returns>True if the item was removed, or false if it was not found</returns>
- public bool Remove(T item)
- {
- MultiRange range = item.Range;
-
- int removed = 0;
-
- for (int i = 0; i < range.Count; i++)
- {
- var subrange = range.GetSubRange(i);
-
- if (IsInvalid(ref subrange))
- {
- continue;
- }
-
- removed += _items.Remove(subrange.Address, item);
- }
-
- if (removed > 0)
- {
- // All deleted intervals are for the same item - the one we removed.
- Count--;
- }
-
- return removed > 0;
- }
-
- /// <summary>
- /// Gets all items on the list overlapping the specified memory range.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size in bytes of the range</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlaps(ulong address, ulong size, ref T[] output)
- {
- return FindOverlaps(new MultiRange(address, size), ref output);
- }
-
- /// <summary>
- /// Gets all items on the list overlapping the specified memory ranges.
- /// </summary>
- /// <param name="range">Ranges of memory being searched</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlaps(MultiRange range, ref T[] output)
- {
- int overlapCount = 0;
-
- for (int i = 0; i < range.Count; i++)
- {
- var subrange = range.GetSubRange(i);
-
- if (IsInvalid(ref subrange))
- {
- continue;
- }
-
- overlapCount = _items.Get(subrange.Address, subrange.EndAddress, ref output, overlapCount);
- }
-
- // Remove any duplicates, caused by items having multiple sub range nodes in the tree.
- if (overlapCount > 1)
- {
- int insertPtr = 0;
- for (int i = 0; i < overlapCount; i++)
- {
- T item = output[i];
- bool duplicate = false;
-
- for (int j = insertPtr - 1; j >= 0; j--)
- {
- if (item.Equals(output[j]))
- {
- duplicate = true;
- break;
- }
- }
-
- if (!duplicate)
- {
- if (insertPtr != i)
- {
- output[insertPtr] = item;
- }
-
- insertPtr++;
- }
- }
-
- overlapCount = insertPtr;
- }
-
- return overlapCount;
- }
-
- /// <summary>
- /// Checks if a given sub-range of memory is invalid.
- /// Those are used to represent unmapped memory regions (holes in the region mapping).
- /// </summary>
- /// <param name="subRange">Memory range to checl</param>
- /// <returns>True if the memory range is considered invalid, false otherwise</returns>
- private static bool IsInvalid(ref MemoryRange subRange)
- {
- return subRange.Address == ulong.MaxValue;
- }
-
- /// <summary>
- /// Gets all items on the list starting at the specified memory address.
- /// </summary>
- /// <param name="baseAddress">Base address to find</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of matches found</returns>
- public int FindOverlaps(ulong baseAddress, ref T[] output)
- {
- int count = _items.Get(baseAddress, ref output);
-
- // Only output items with matching base address
- int insertPtr = 0;
- for (int i = 0; i < count; i++)
- {
- if (output[i].BaseAddress == baseAddress)
- {
- if (i != insertPtr)
- {
- output[insertPtr] = output[i];
- }
-
- insertPtr++;
- }
- }
-
- return insertPtr;
- }
-
- private List<T> GetList()
- {
- var items = _items.AsList();
- var result = new List<T>();
-
- foreach (RangeNode<ulong, T> item in items)
- {
- if (item.Start == item.Value.BaseAddress)
- {
- result.Add(item.Value);
- }
- }
-
- return result;
- }
-
- public IEnumerator<T> GetEnumerator()
- {
- return GetList().GetEnumerator();
- }
-
- IEnumerator IEnumerable.GetEnumerator()
- {
- return GetList().GetEnumerator();
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/NonOverlappingRangeList.cs b/Ryujinx.Memory/Range/NonOverlappingRangeList.cs
deleted file mode 100644
index 60b2b378..00000000
--- a/Ryujinx.Memory/Range/NonOverlappingRangeList.cs
+++ /dev/null
@@ -1,106 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// A range list that assumes ranges are non-overlapping, with list items that can be split in two to avoid overlaps.
- /// </summary>
- /// <typeparam name="T">Type of the range.</typeparam>
- class NonOverlappingRangeList<T> : RangeList<T> where T : INonOverlappingRange
- {
- /// <summary>
- /// Finds a list of regions that cover the desired (address, size) range.
- /// If this range starts or ends in the middle of an existing region, it is split and only the relevant part is added.
- /// If there is no matching region, or there is a gap, then new regions are created with the factory.
- /// Regions are added to the list in address ascending order.
- /// </summary>
- /// <param name="list">List to add found regions to</param>
- /// <param name="address">Start address of the search region</param>
- /// <param name="size">Size of the search region</param>
- /// <param name="factory">Factory for creating new ranges</param>
- public void GetOrAddRegions(List<T> list, ulong address, ulong size, Func<ulong, ulong, T> factory)
- {
- // (regarding the specific case this generalized function is used for)
- // A new region may be split into multiple parts if multiple virtual regions have mapped to it.
- // For instance, while a virtual mapping could cover 0-2 in physical space, the space 0-1 may have already been reserved...
- // So we need to return both the split 0-1 and 1-2 ranges.
-
- var results = new T[1];
- int count = FindOverlapsNonOverlapping(address, size, ref results);
-
- if (count == 0)
- {
- // The region is fully unmapped. Create and add it to the range list.
- T region = factory(address, size);
- list.Add(region);
- Add(region);
- }
- else
- {
- ulong lastAddress = address;
- ulong endAddress = address + size;
-
- for (int i = 0; i < count; i++)
- {
- T region = results[i];
- if (count == 1 && region.Address == address && region.Size == size)
- {
- // Exact match, no splitting required.
- list.Add(region);
- return;
- }
-
- if (lastAddress < region.Address)
- {
- // There is a gap between this region and the last. We need to fill it.
- T fillRegion = factory(lastAddress, region.Address - lastAddress);
- list.Add(fillRegion);
- Add(fillRegion);
- }
-
- if (region.Address < address)
- {
- // Split the region around our base address and take the high half.
-
- region = Split(region, address);
- }
-
- if (region.EndAddress > address + size)
- {
- // Split the region around our end address and take the low half.
-
- Split(region, address + size);
- }
-
- list.Add(region);
- lastAddress = region.EndAddress;
- }
-
- if (lastAddress < endAddress)
- {
- // There is a gap between this region and the end. We need to fill it.
- T fillRegion = factory(lastAddress, endAddress - lastAddress);
- list.Add(fillRegion);
- Add(fillRegion);
- }
- }
- }
-
- /// <summary>
- /// Splits a region around a target point and updates the region list.
- /// The original region's size is modified, but its address stays the same.
- /// A new region starting from the split address is added to the region list and returned.
- /// </summary>
- /// <param name="region">The region to split</param>
- /// <param name="splitAddress">The address to split with</param>
- /// <returns>The new region (high part)</returns>
- private T Split(T region, ulong splitAddress)
- {
- T newRegion = (T)region.Split(splitAddress);
- Update(region);
- Add(newRegion);
- return newRegion;
- }
- }
-}
diff --git a/Ryujinx.Memory/Range/RangeList.cs b/Ryujinx.Memory/Range/RangeList.cs
deleted file mode 100644
index 46919597..00000000
--- a/Ryujinx.Memory/Range/RangeList.cs
+++ /dev/null
@@ -1,483 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Runtime.CompilerServices;
-
-namespace Ryujinx.Memory.Range
-{
- /// <summary>
- /// Sorted list of ranges that supports binary search.
- /// </summary>
- /// <typeparam name="T">Type of the range.</typeparam>
- public class RangeList<T> : IEnumerable<T> where T : IRange
- {
- private readonly struct RangeItem<TValue> where TValue : IRange
- {
- public readonly ulong Address;
- public readonly ulong EndAddress;
-
- public readonly TValue Value;
-
- public RangeItem(TValue value)
- {
- Value = value;
-
- Address = value.Address;
- EndAddress = value.Address + value.Size;
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public bool OverlapsWith(ulong address, ulong endAddress)
- {
- return Address < endAddress && address < EndAddress;
- }
- }
-
- private const int BackingInitialSize = 1024;
- private const int ArrayGrowthSize = 32;
-
- private RangeItem<T>[] _items;
- private readonly int _backingGrowthSize;
-
- public int Count { get; protected set; }
-
- /// <summary>
- /// Creates a new range list.
- /// </summary>
- /// <param name="backingInitialSize">The initial size of the backing array</param>
- public RangeList(int backingInitialSize = BackingInitialSize)
- {
- _backingGrowthSize = backingInitialSize;
- _items = new RangeItem<T>[backingInitialSize];
- }
-
- /// <summary>
- /// Adds a new item to the list.
- /// </summary>
- /// <param name="item">The item to be added</param>
- public void Add(T item)
- {
- int index = BinarySearch(item.Address);
-
- if (index < 0)
- {
- index = ~index;
- }
-
- Insert(index, new RangeItem<T>(item));
- }
-
- /// <summary>
- /// Updates an item's end address on the list. Address must be the same.
- /// </summary>
- /// <param name="item">The item to be updated</param>
- /// <returns>True if the item was located and updated, false otherwise</returns>
- public bool Update(T item)
- {
- int index = BinarySearch(item.Address);
-
- if (index >= 0)
- {
- while (index > 0 && _items[index - 1].Address == item.Address)
- {
- index--;
- }
-
- while (index < Count)
- {
- if (_items[index].Value.Equals(item))
- {
- _items[index] = new RangeItem<T>(item);
-
- return true;
- }
-
- if (_items[index].Address > item.Address)
- {
- break;
- }
-
- index++;
- }
- }
-
- return false;
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private void Insert(int index, RangeItem<T> item)
- {
- if (Count + 1 > _items.Length)
- {
- Array.Resize(ref _items, _items.Length + _backingGrowthSize);
- }
-
- if (index >= Count)
- {
- if (index == Count)
- {
- _items[Count++] = item;
- }
- }
- else
- {
- Array.Copy(_items, index, _items, index + 1, Count - index);
-
- _items[index] = item;
- Count++;
- }
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private void RemoveAt(int index)
- {
- if (index < --Count)
- {
- Array.Copy(_items, index + 1, _items, index, Count - index);
- }
- }
-
- /// <summary>
- /// Removes an item from the list.
- /// </summary>
- /// <param name="item">The item to be removed</param>
- /// <returns>True if the item was removed, or false if it was not found</returns>
- public bool Remove(T item)
- {
- int index = BinarySearch(item.Address);
-
- if (index >= 0)
- {
- while (index > 0 && _items[index - 1].Address == item.Address)
- {
- index--;
- }
-
- while (index < Count)
- {
- if (_items[index].Value.Equals(item))
- {
- RemoveAt(index);
-
- return true;
- }
-
- if (_items[index].Address > item.Address)
- {
- break;
- }
-
- index++;
- }
- }
-
- return false;
- }
-
- /// <summary>
- /// Updates an item's end address.
- /// </summary>
- /// <param name="item">The item to be updated</param>
- public void UpdateEndAddress(T item)
- {
- int index = BinarySearch(item.Address);
-
- if (index >= 0)
- {
- while (index > 0 && _items[index - 1].Address == item.Address)
- {
- index--;
- }
-
- while (index < Count)
- {
- if (_items[index].Value.Equals(item))
- {
- _items[index] = new RangeItem<T>(item);
-
- return;
- }
-
- if (_items[index].Address > item.Address)
- {
- break;
- }
-
- index++;
- }
- }
- }
-
- /// <summary>
- /// Gets the first item on the list overlapping in memory with the specified item.
- /// </summary>
- /// <remarks>
- /// Despite the name, this has no ordering guarantees of the returned item.
- /// It only ensures that the item returned overlaps the specified item.
- /// </remarks>
- /// <param name="item">Item to check for overlaps</param>
- /// <returns>The overlapping item, or the default value for the type if none found</returns>
- public T FindFirstOverlap(T item)
- {
- return FindFirstOverlap(item.Address, item.Size);
- }
-
- /// <summary>
- /// Gets the first item on the list overlapping the specified memory range.
- /// </summary>
- /// <remarks>
- /// Despite the name, this has no ordering guarantees of the returned item.
- /// It only ensures that the item returned overlaps the specified memory range.
- /// </remarks>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size in bytes of the range</param>
- /// <returns>The overlapping item, or the default value for the type if none found</returns>
- public T FindFirstOverlap(ulong address, ulong size)
- {
- int index = BinarySearch(address, address + size);
-
- if (index < 0)
- {
- return default(T);
- }
-
- return _items[index].Value;
- }
-
- /// <summary>
- /// Gets all items overlapping with the specified item in memory.
- /// </summary>
- /// <param name="item">Item to check for overlaps</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlaps(T item, ref T[] output)
- {
- return FindOverlaps(item.Address, item.Size, ref output);
- }
-
- /// <summary>
- /// Gets all items on the list overlapping the specified memory range.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size in bytes of the range</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlaps(ulong address, ulong size, ref T[] output)
- {
- int outputIndex = 0;
-
- ulong endAddress = address + size;
-
- for (int i = 0; i < Count; i++)
- {
- ref RangeItem<T> item = ref _items[i];
-
- if (item.Address >= endAddress)
- {
- break;
- }
-
- if (item.OverlapsWith(address, endAddress))
- {
- if (outputIndex == output.Length)
- {
- Array.Resize(ref output, outputIndex + ArrayGrowthSize);
- }
-
- output[outputIndex++] = item.Value;
- }
- }
-
- return outputIndex;
- }
-
- /// <summary>
- /// Gets all items overlapping with the specified item in memory.
- /// </summary>
- /// <remarks>
- /// This method only returns correct results if none of the items on the list overlaps with
- /// each other. If that is not the case, this method should not be used.
- /// This method is faster than the regular method to find all overlaps.
- /// </remarks>
- /// <param name="item">Item to check for overlaps</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlapsNonOverlapping(T item, ref T[] output)
- {
- return FindOverlapsNonOverlapping(item.Address, item.Size, ref output);
- }
-
- /// <summary>
- /// Gets all items on the list overlapping the specified memory range.
- /// </summary>
- /// <remarks>
- /// This method only returns correct results if none of the items on the list overlaps with
- /// each other. If that is not the case, this method should not be used.
- /// This method is faster than the regular method to find all overlaps.
- /// </remarks>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size in bytes of the range</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of overlapping items found</returns>
- public int FindOverlapsNonOverlapping(ulong address, ulong size, ref T[] output)
- {
- // This is a bit faster than FindOverlaps, but only works
- // when none of the items on the list overlaps with each other.
- int outputIndex = 0;
-
- ulong endAddress = address + size;
-
- int index = BinarySearch(address, endAddress);
-
- if (index >= 0)
- {
- while (index > 0 && _items[index - 1].OverlapsWith(address, endAddress))
- {
- index--;
- }
-
- do
- {
- if (outputIndex == output.Length)
- {
- Array.Resize(ref output, outputIndex + ArrayGrowthSize);
- }
-
- output[outputIndex++] = _items[index++].Value;
- }
- while (index < Count && _items[index].OverlapsWith(address, endAddress));
- }
-
- return outputIndex;
- }
-
- /// <summary>
- /// Gets all items on the list with the specified memory address.
- /// </summary>
- /// <param name="address">Address to find</param>
- /// <param name="output">Output array where matches will be written. It is automatically resized to fit the results</param>
- /// <returns>The number of matches found</returns>
- public int FindOverlaps(ulong address, ref T[] output)
- {
- int index = BinarySearch(address);
-
- int outputIndex = 0;
-
- if (index >= 0)
- {
- while (index > 0 && _items[index - 1].Address == address)
- {
- index--;
- }
-
- while (index < Count)
- {
- ref RangeItem<T> overlap = ref _items[index++];
-
- if (overlap.Address != address)
- {
- break;
- }
-
- if (outputIndex == output.Length)
- {
- Array.Resize(ref output, outputIndex + ArrayGrowthSize);
- }
-
- output[outputIndex++] = overlap.Value;
- }
- }
-
- return outputIndex;
- }
-
- /// <summary>
- /// Performs binary search on the internal list of items.
- /// </summary>
- /// <param name="address">Address to find</param>
- /// <returns>List index of the item, or complement index of nearest item with lower value on the list</returns>
- private int BinarySearch(ulong address)
- {
- int left = 0;
- int right = Count - 1;
-
- while (left <= right)
- {
- int range = right - left;
-
- int middle = left + (range >> 1);
-
- ref RangeItem<T> item = ref _items[middle];
-
- if (item.Address == address)
- {
- return middle;
- }
-
- if (address < item.Address)
- {
- right = middle - 1;
- }
- else
- {
- left = middle + 1;
- }
- }
-
- return ~left;
- }
-
- /// <summary>
- /// Performs binary search for items overlapping a given memory range.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="endAddress">End address of the range</param>
- /// <returns>List index of the item, or complement index of nearest item with lower value on the list</returns>
- private int BinarySearch(ulong address, ulong endAddress)
- {
- int left = 0;
- int right = Count - 1;
-
- while (left <= right)
- {
- int range = right - left;
-
- int middle = left + (range >> 1);
-
- ref RangeItem<T> item = ref _items[middle];
-
- if (item.OverlapsWith(address, endAddress))
- {
- return middle;
- }
-
- if (address < item.Address)
- {
- right = middle - 1;
- }
- else
- {
- left = middle + 1;
- }
- }
-
- return ~left;
- }
-
- public IEnumerator<T> GetEnumerator()
- {
- for (int i = 0; i < Count; i++)
- {
- yield return _items[i].Value;
- }
- }
-
- IEnumerator IEnumerable.GetEnumerator()
- {
- for (int i = 0; i < Count; i++)
- {
- yield return _items[i].Value;
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/Ryujinx.Memory.csproj b/Ryujinx.Memory/Ryujinx.Memory.csproj
deleted file mode 100644
index 91e46e48..00000000
--- a/Ryujinx.Memory/Ryujinx.Memory.csproj
+++ /dev/null
@@ -1,12 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
- <PropertyGroup>
- <TargetFramework>net7.0</TargetFramework>
- <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
- </PropertyGroup>
-
- <ItemGroup>
- <ProjectReference Include="..\Ryujinx.Common\Ryujinx.Common.csproj" />
- </ItemGroup>
-
-</Project>
diff --git a/Ryujinx.Memory/Tracking/AbstractRegion.cs b/Ryujinx.Memory/Tracking/AbstractRegion.cs
deleted file mode 100644
index bd4c8ab5..00000000
--- a/Ryujinx.Memory/Tracking/AbstractRegion.cs
+++ /dev/null
@@ -1,73 +0,0 @@
-using Ryujinx.Memory.Range;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A region of memory.
- /// </summary>
- abstract class AbstractRegion : INonOverlappingRange
- {
- /// <summary>
- /// Base address.
- /// </summary>
- public ulong Address { get; }
-
- /// <summary>
- /// Size of the range in bytes.
- /// </summary>
- public ulong Size { get; protected set; }
-
- /// <summary>
- /// End address.
- /// </summary>
- public ulong EndAddress => Address + Size;
-
- /// <summary>
- /// Create a new region.
- /// </summary>
- /// <param name="address">Base address</param>
- /// <param name="size">Size of the range</param>
- protected AbstractRegion(ulong address, ulong size)
- {
- Address = address;
- Size = size;
- }
-
- /// <summary>
- /// Check if this range overlaps with another.
- /// </summary>
- /// <param name="address">Base address</param>
- /// <param name="size">Size of the range</param>
- /// <returns>True if overlapping, false otherwise</returns>
- public bool OverlapsWith(ulong address, ulong size)
- {
- return Address < address + size && address < EndAddress;
- }
-
- /// <summary>
- /// Signals to the handles that a memory event has occurred, and unprotects the region. Assumes that the tracking lock has been obtained.
- /// </summary>
- /// <param name="address">Address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <param name="exemptId">Optional ID of the handles that should not be signalled</param>
- public abstract void Signal(ulong address, ulong size, bool write, int? exemptId);
-
- /// <summary>
- /// Signals to the handles that a precise memory event has occurred. Assumes that the tracking lock has been obtained.
- /// </summary>
- /// <param name="address">Address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <param name="exemptId">Optional ID of the handles that should not be signalled</param>
- public abstract void SignalPrecise(ulong address, ulong size, bool write, int? exemptId);
-
- /// <summary>
- /// Split this region into two, around the specified address.
- /// This region is updated to end at the split address, and a new region is created to represent past that point.
- /// </summary>
- /// <param name="splitAddress">Address to split the region around</param>
- /// <returns>The second part of the split region, with start address at the given split.</returns>
- public abstract INonOverlappingRange Split(ulong splitAddress);
- }
-}
diff --git a/Ryujinx.Memory/Tracking/BitMap.cs b/Ryujinx.Memory/Tracking/BitMap.cs
deleted file mode 100644
index 173952f3..00000000
--- a/Ryujinx.Memory/Tracking/BitMap.cs
+++ /dev/null
@@ -1,199 +0,0 @@
-using System.Runtime.CompilerServices;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A bitmap that can check or set large ranges of true/false values at once.
- /// </summary>
- readonly struct BitMap
- {
- public const int IntSize = 64;
-
- private const int IntShift = 6;
- private const int IntMask = IntSize - 1;
-
- /// <summary>
- /// Masks representing the bitmap. Least significant bit first, 64-bits per mask.
- /// </summary>
- public readonly long[] Masks;
-
- /// <summary>
- /// Create a new bitmap.
- /// </summary>
- /// <param name="count">The number of bits to reserve</param>
- public BitMap(int count)
- {
- Masks = new long[(count + IntMask) / IntSize];
- }
-
- /// <summary>
- /// Check if any bit in the bitmap is set.
- /// </summary>
- /// <returns>True if any bits are set, false otherwise</returns>
- public bool AnySet()
- {
- for (int i = 0; i < Masks.Length; i++)
- {
- if (Masks[i] != 0)
- {
- return true;
- }
- }
-
- return false;
- }
-
- /// <summary>
- /// Check if a bit in the bitmap is set.
- /// </summary>
- /// <param name="bit">The bit index to check</param>
- /// <returns>True if the bit is set, false otherwise</returns>
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- public bool IsSet(int bit)
- {
- int wordIndex = bit >> IntShift;
- int wordBit = bit & IntMask;
-
- long wordMask = 1L << wordBit;
-
- return (Masks[wordIndex] & wordMask) != 0;
- }
-
- /// <summary>
- /// Check if any bit in a range of bits in the bitmap are set. (inclusive)
- /// </summary>
- /// <param name="start">The first bit index to check</param>
- /// <param name="end">The last bit index to check</param>
- /// <returns>True if a bit is set, false otherwise</returns>
- public bool IsSet(int start, int end)
- {
- if (start == end)
- {
- return IsSet(start);
- }
-
- int startIndex = start >> IntShift;
- int startBit = start & IntMask;
- long startMask = -1L << startBit;
-
- int endIndex = end >> IntShift;
- int endBit = end & IntMask;
- long endMask = (long)(ulong.MaxValue >> (IntMask - endBit));
-
- if (startIndex == endIndex)
- {
- return (Masks[startIndex] & startMask & endMask) != 0;
- }
-
- if ((Masks[startIndex] & startMask) != 0)
- {
- return true;
- }
-
- for (int i = startIndex + 1; i < endIndex; i++)
- {
- if (Masks[i] != 0)
- {
- return true;
- }
- }
-
- if ((Masks[endIndex] & endMask) != 0)
- {
- return true;
- }
-
- return false;
- }
-
- /// <summary>
- /// Set a bit at a specific index to 1.
- /// </summary>
- /// <param name="bit">The bit index to set</param>
- /// <returns>True if the bit is set, false if it was already set</returns>
- public bool Set(int bit)
- {
- int wordIndex = bit >> IntShift;
- int wordBit = bit & IntMask;
-
- long wordMask = 1L << wordBit;
-
- if ((Masks[wordIndex] & wordMask) != 0)
- {
- return false;
- }
-
- Masks[wordIndex] |= wordMask;
-
- return true;
- }
-
- /// <summary>
- /// Set a range of bits in the bitmap to 1.
- /// </summary>
- /// <param name="start">The first bit index to set</param>
- /// <param name="end">The last bit index to set</param>
- public void SetRange(int start, int end)
- {
- if (start == end)
- {
- Set(start);
- return;
- }
-
- int startIndex = start >> IntShift;
- int startBit = start & IntMask;
- long startMask = -1L << startBit;
-
- int endIndex = end >> IntShift;
- int endBit = end & IntMask;
- long endMask = (long)(ulong.MaxValue >> (IntMask - endBit));
-
- if (startIndex == endIndex)
- {
- Masks[startIndex] |= startMask & endMask;
- }
- else
- {
- Masks[startIndex] |= startMask;
-
- for (int i = startIndex + 1; i < endIndex; i++)
- {
- Masks[i] |= -1;
- }
-
- Masks[endIndex] |= endMask;
- }
- }
-
- /// <summary>
- /// Clear a bit at a specific index to 0.
- /// </summary>
- /// <param name="bit">The bit index to clear</param>
- /// <returns>True if the bit was set, false if it was not</returns>
- public bool Clear(int bit)
- {
- int wordIndex = bit >> IntShift;
- int wordBit = bit & IntMask;
-
- long wordMask = 1L << wordBit;
-
- bool wasSet = (Masks[wordIndex] & wordMask) != 0;
-
- Masks[wordIndex] &= ~wordMask;
-
- return wasSet;
- }
-
- /// <summary>
- /// Clear the bitmap entirely, setting all bits to 0.
- /// </summary>
- public void Clear()
- {
- for (int i = 0; i < Masks.Length; i++)
- {
- Masks[i] = 0;
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/ConcurrentBitmap.cs b/Ryujinx.Memory/Tracking/ConcurrentBitmap.cs
deleted file mode 100644
index 994fda92..00000000
--- a/Ryujinx.Memory/Tracking/ConcurrentBitmap.cs
+++ /dev/null
@@ -1,152 +0,0 @@
-using System;
-using System.Threading;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A bitmap that can be safely modified from multiple threads.
- /// </summary>
- internal class ConcurrentBitmap
- {
- public const int IntSize = 64;
-
- public const int IntShift = 6;
- public const int IntMask = IntSize - 1;
-
- /// <summary>
- /// Masks representing the bitmap. Least significant bit first, 64-bits per mask.
- /// </summary>
- public readonly long[] Masks;
-
- /// <summary>
- /// Create a new multithreaded bitmap.
- /// </summary>
- /// <param name="count">The number of bits to reserve</param>
- /// <param name="set">Whether the bits should be initially set or not</param>
- public ConcurrentBitmap(int count, bool set)
- {
- Masks = new long[(count + IntMask) / IntSize];
-
- if (set)
- {
- Array.Fill(Masks, -1L);
- }
- }
-
- /// <summary>
- /// Check if any bit in the bitmap is set.
- /// </summary>
- /// <returns>True if any bits are set, false otherwise</returns>
- public bool AnySet()
- {
- for (int i = 0; i < Masks.Length; i++)
- {
- if (Interlocked.Read(ref Masks[i]) != 0)
- {
- return true;
- }
- }
-
- return false;
- }
-
- /// <summary>
- /// Check if a bit in the bitmap is set.
- /// </summary>
- /// <param name="bit">The bit index to check</param>
- /// <returns>True if the bit is set, false otherwise</returns>
- public bool IsSet(int bit)
- {
- int wordIndex = bit >> IntShift;
- int wordBit = bit & IntMask;
-
- long wordMask = 1L << wordBit;
-
- return (Interlocked.Read(ref Masks[wordIndex]) & wordMask) != 0;
- }
-
- /// <summary>
- /// Check if any bit in a range of bits in the bitmap are set. (inclusive)
- /// </summary>
- /// <param name="start">The first bit index to check</param>
- /// <param name="end">The last bit index to check</param>
- /// <returns>True if a bit is set, false otherwise</returns>
- public bool IsSet(int start, int end)
- {
- if (start == end)
- {
- return IsSet(start);
- }
-
- int startIndex = start >> IntShift;
- int startBit = start & IntMask;
- long startMask = -1L << startBit;
-
- int endIndex = end >> IntShift;
- int endBit = end & IntMask;
- long endMask = (long)(ulong.MaxValue >> (IntMask - endBit));
-
- long startValue = Interlocked.Read(ref Masks[startIndex]);
-
- if (startIndex == endIndex)
- {
- return (startValue & startMask & endMask) != 0;
- }
-
- if ((startValue & startMask) != 0)
- {
- return true;
- }
-
- for (int i = startIndex + 1; i < endIndex; i++)
- {
- if (Interlocked.Read(ref Masks[i]) != 0)
- {
- return true;
- }
- }
-
- long endValue = Interlocked.Read(ref Masks[endIndex]);
-
- if ((endValue & endMask) != 0)
- {
- return true;
- }
-
- return false;
- }
-
- /// <summary>
- /// Set a bit at a specific index to either true or false.
- /// </summary>
- /// <param name="bit">The bit index to set</param>
- /// <param name="value">Whether the bit should be set or not</param>
- public void Set(int bit, bool value)
- {
- int wordIndex = bit >> IntShift;
- int wordBit = bit & IntMask;
-
- long wordMask = 1L << wordBit;
-
- if (value)
- {
- Interlocked.Or(ref Masks[wordIndex], wordMask);
- }
- else
- {
- Interlocked.And(ref Masks[wordIndex], ~wordMask);
- }
- }
-
- /// <summary>
- /// Clear the bitmap entirely, setting all bits to 0.
- /// </summary>
- public void Clear()
- {
- for (int i = 0; i < Masks.Length; i++)
- {
- Interlocked.Exchange(ref Masks[i], 0);
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/IMultiRegionHandle.cs b/Ryujinx.Memory/Tracking/IMultiRegionHandle.cs
deleted file mode 100644
index 71bd602f..00000000
--- a/Ryujinx.Memory/Tracking/IMultiRegionHandle.cs
+++ /dev/null
@@ -1,55 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.Tracking
-{
- public interface IMultiRegionHandle : IDisposable
- {
- /// <summary>
- /// True if any write has occurred to the whole region since the last use of QueryModified (with no subregion specified).
- /// </summary>
- bool Dirty { get; }
-
- /// <summary>
- /// Force the range of handles to be dirty, without reprotecting.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size of the range</param>
- public void ForceDirty(ulong address, ulong size);
-
- /// <summary>
- /// Check if any part of the region has been modified, and perform an action for each.
- /// Contiguous modified regions are combined.
- /// </summary>
- /// <param name="modifiedAction">Action to perform for modified regions</param>
- void QueryModified(Action<ulong, ulong> modifiedAction);
-
-
- /// <summary>
- /// Check if part of the region has been modified within a given range, and perform an action for each.
- /// The range is aligned to the level of granularity of the contained handles.
- /// Contiguous modified regions are combined.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size of the range</param>
- /// <param name="modifiedAction">Action to perform for modified regions</param>
- void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction);
-
- /// <summary>
- /// Check if part of the region has been modified within a given range, and perform an action for each.
- /// The sequence number provided is compared with each handle's saved sequence number.
- /// If it is equal, then the handle's dirty flag is ignored. Otherwise, the sequence number is saved.
- /// The range is aligned to the level of granularity of the contained handles.
- /// Contiguous modified regions are combined.
- /// </summary>
- /// <param name="address">Start address of the range</param>
- /// <param name="size">Size of the range</param>
- /// <param name="modifiedAction">Action to perform for modified regions</param>
- /// <param name="sequenceNumber">Current sequence number</param>
- void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction, int sequenceNumber);
-
- /// <summary>
- /// Signal that one of the subregions of this multi-region has been modified. This sets the overall dirty flag.
- /// </summary>
- void SignalWrite();
- }
-}
diff --git a/Ryujinx.Memory/Tracking/IRegionHandle.cs b/Ryujinx.Memory/Tracking/IRegionHandle.cs
deleted file mode 100644
index 9d99d90e..00000000
--- a/Ryujinx.Memory/Tracking/IRegionHandle.cs
+++ /dev/null
@@ -1,18 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.Tracking
-{
- public interface IRegionHandle : IDisposable
- {
- bool Dirty { get; }
-
- ulong Address { get; }
- ulong Size { get; }
- ulong EndAddress { get; }
-
- void ForceDirty();
- void Reprotect(bool asDirty = false);
- void RegisterAction(RegionSignal action);
- void RegisterPreciseAction(PreciseRegionSignal action);
- }
-}
diff --git a/Ryujinx.Memory/Tracking/MemoryTracking.cs b/Ryujinx.Memory/Tracking/MemoryTracking.cs
deleted file mode 100644
index bf1e0ad3..00000000
--- a/Ryujinx.Memory/Tracking/MemoryTracking.cs
+++ /dev/null
@@ -1,306 +0,0 @@
-using Ryujinx.Common.Pools;
-using Ryujinx.Memory.Range;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// Manages memory tracking for a given virutal/physical memory block.
- /// </summary>
- public class MemoryTracking
- {
- private readonly IVirtualMemoryManager _memoryManager;
- private readonly InvalidAccessHandler _invalidAccessHandler;
-
- // Only use these from within the lock.
- private readonly NonOverlappingRangeList<VirtualRegion> _virtualRegions;
-
- private readonly int _pageSize;
-
- /// <summary>
- /// This lock must be obtained when traversing or updating the region-handle hierarchy.
- /// It is not required when reading dirty flags.
- /// </summary>
- internal object TrackingLock = new object();
-
- /// <summary>
- /// Create a new tracking structure for the given "physical" memory block,
- /// with a given "virtual" memory manager that will provide mappings and virtual memory protection.
- /// </summary>
- /// <param name="memoryManager">Virtual memory manager</param>
- /// <param name="block">Physical memory block</param>
- /// <param name="pageSize">Page size of the virtual memory space</param>
- public MemoryTracking(IVirtualMemoryManager memoryManager, int pageSize, InvalidAccessHandler invalidAccessHandler = null)
- {
- _memoryManager = memoryManager;
- _pageSize = pageSize;
- _invalidAccessHandler = invalidAccessHandler;
-
- _virtualRegions = new NonOverlappingRangeList<VirtualRegion>();
- }
-
- private (ulong address, ulong size) PageAlign(ulong address, ulong size)
- {
- ulong pageMask = (ulong)_pageSize - 1;
- ulong rA = address & ~pageMask;
- ulong rS = ((address + size + pageMask) & ~pageMask) - rA;
- return (rA, rS);
- }
-
- /// <summary>
- /// Indicate that a virtual region has been mapped, and which physical region it has been mapped to.
- /// Should be called after the mapping is complete.
- /// </summary>
- /// <param name="va">Virtual memory address</param>
- /// <param name="size">Size to be mapped</param>
- public void Map(ulong va, ulong size)
- {
- // A mapping may mean we need to re-evaluate each VirtualRegion's affected area.
- // Find all handles that overlap with the range, we need to recalculate their physical regions
-
- lock (TrackingLock)
- {
- ref var overlaps = ref ThreadStaticArray<VirtualRegion>.Get();
-
- int count = _virtualRegions.FindOverlapsNonOverlapping(va, size, ref overlaps);
-
- for (int i = 0; i < count; i++)
- {
- VirtualRegion region = overlaps[i];
-
- // If the region has been fully remapped, signal that it has been mapped again.
- bool remapped = _memoryManager.IsRangeMapped(region.Address, region.Size);
- if (remapped)
- {
- region.SignalMappingChanged(true);
- }
-
- region.UpdateProtection();
- }
- }
- }
-
- /// <summary>
- /// Indicate that a virtual region has been unmapped.
- /// Should be called before the unmapping is complete.
- /// </summary>
- /// <param name="va">Virtual memory address</param>
- /// <param name="size">Size to be unmapped</param>
- public void Unmap(ulong va, ulong size)
- {
- // An unmapping may mean we need to re-evaluate each VirtualRegion's affected area.
- // Find all handles that overlap with the range, we need to notify them that the region was unmapped.
-
- lock (TrackingLock)
- {
- ref var overlaps = ref ThreadStaticArray<VirtualRegion>.Get();
-
- int count = _virtualRegions.FindOverlapsNonOverlapping(va, size, ref overlaps);
-
- for (int i = 0; i < count; i++)
- {
- VirtualRegion region = overlaps[i];
-
- region.SignalMappingChanged(false);
- }
- }
- }
-
- /// <summary>
- /// Get a list of virtual regions that a handle covers.
- /// </summary>
- /// <param name="va">Starting virtual memory address of the handle</param>
- /// <param name="size">Size of the handle's memory region</param>
- /// <returns>A list of virtual regions within the given range</returns>
- internal List<VirtualRegion> GetVirtualRegionsForHandle(ulong va, ulong size)
- {
- List<VirtualRegion> result = new List<VirtualRegion>();
- _virtualRegions.GetOrAddRegions(result, va, size, (va, size) => new VirtualRegion(this, va, size));
-
- return result;
- }
-
- /// <summary>
- /// Remove a virtual region from the range list. This assumes that the lock has been acquired.
- /// </summary>
- /// <param name="region">Region to remove</param>
- internal void RemoveVirtual(VirtualRegion region)
- {
- _virtualRegions.Remove(region);
- }
-
- /// <summary>
- /// Obtains a memory tracking handle for the given virtual region, with a specified granularity. This should be disposed when finished with.
- /// </summary>
- /// <param name="address">CPU virtual address of the region</param>
- /// <param name="size">Size of the region</param>
- /// <param name="handles">Handles to inherit state from or reuse. When none are present, provide null</param>
- /// <param name="granularity">Desired granularity of write tracking</param>
- /// <param name="id">Handle ID</param>
- /// <returns>The memory tracking handle</returns>
- public MultiRegionHandle BeginGranularTracking(ulong address, ulong size, IEnumerable<IRegionHandle> handles, ulong granularity, int id)
- {
- return new MultiRegionHandle(this, address, size, handles, granularity, id);
- }
-
- /// <summary>
- /// Obtains a smart memory tracking handle for the given virtual region, with a specified granularity. This should be disposed when finished with.
- /// </summary>
- /// <param name="address">CPU virtual address of the region</param>
- /// <param name="size">Size of the region</param>
- /// <param name="granularity">Desired granularity of write tracking</param>
- /// <param name="id">Handle ID</param>
- /// <returns>The memory tracking handle</returns>
- public SmartMultiRegionHandle BeginSmartGranularTracking(ulong address, ulong size, ulong granularity, int id)
- {
- (address, size) = PageAlign(address, size);
-
- return new SmartMultiRegionHandle(this, address, size, granularity, id);
- }
-
- /// <summary>
- /// Obtains a memory tracking handle for the given virtual region. This should be disposed when finished with.
- /// </summary>
- /// <param name="address">CPU virtual address of the region</param>
- /// <param name="size">Size of the region</param>
- /// <param name="id">Handle ID</param>
- /// <returns>The memory tracking handle</returns>
- public RegionHandle BeginTracking(ulong address, ulong size, int id)
- {
- var (paAddress, paSize) = PageAlign(address, size);
-
- lock (TrackingLock)
- {
- bool mapped = _memoryManager.IsRangeMapped(address, size);
- RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, id, mapped);
-
- return handle;
- }
- }
-
- /// <summary>
- /// Obtains a memory tracking handle for the given virtual region. This should be disposed when finished with.
- /// </summary>
- /// <param name="address">CPU virtual address of the region</param>
- /// <param name="size">Size of the region</param>
- /// <param name="bitmap">The bitmap owning the dirty flag for this handle</param>
- /// <param name="bit">The bit of this handle within the dirty flag</param>
- /// <param name="id">Handle ID</param>
- /// <returns>The memory tracking handle</returns>
- internal RegionHandle BeginTrackingBitmap(ulong address, ulong size, ConcurrentBitmap bitmap, int bit, int id)
- {
- var (paAddress, paSize) = PageAlign(address, size);
-
- lock (TrackingLock)
- {
- bool mapped = _memoryManager.IsRangeMapped(address, size);
- RegionHandle handle = new RegionHandle(this, paAddress, paSize, address, size, bitmap, bit, id, mapped);
-
- return handle;
- }
- }
-
- /// <summary>
- /// Signal that a virtual memory event happened at the given location.
- /// </summary>
- /// <param name="address">Virtual address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <returns>True if the event triggered any tracking regions, false otherwise</returns>
- public bool VirtualMemoryEvent(ulong address, ulong size, bool write)
- {
- return VirtualMemoryEvent(address, size, write, precise: false, null);
- }
-
- /// <summary>
- /// Signal that a virtual memory event happened at the given location.
- /// This can be flagged as a precise event, which will avoid reprotection and call special handlers if possible.
- /// A precise event has an exact address and size, rather than triggering on page granularity.
- /// </summary>
- /// <param name="address">Virtual address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <param name="precise">True if the access is precise, false otherwise</param>
- /// <param name="exemptId">Optional ID that of the handles that should not be signalled</param>
- /// <returns>True if the event triggered any tracking regions, false otherwise</returns>
- public bool VirtualMemoryEvent(ulong address, ulong size, bool write, bool precise, int? exemptId = null)
- {
- // Look up the virtual region using the region list.
- // Signal up the chain to relevant handles.
-
- bool shouldThrow = false;
-
- lock (TrackingLock)
- {
- ref var overlaps = ref ThreadStaticArray<VirtualRegion>.Get();
-
- int count = _virtualRegions.FindOverlapsNonOverlapping(address, size, ref overlaps);
-
- if (count == 0 && !precise)
- {
- if (_memoryManager.IsRangeMapped(address, size))
- {
- // TODO: There is currently the possibility that a page can be protected after its virtual region is removed.
- // This code handles that case when it happens, but it would be better to find out how this happens.
- _memoryManager.TrackingReprotect(address & ~(ulong)(_pageSize - 1), (ulong)_pageSize, MemoryPermission.ReadAndWrite);
- return true; // This memory _should_ be mapped, so we need to try again.
- }
- else
- {
- shouldThrow = true;
- }
- }
- else
- {
- for (int i = 0; i < count; i++)
- {
- VirtualRegion region = overlaps[i];
-
- if (precise)
- {
- region.SignalPrecise(address, size, write, exemptId);
- }
- else
- {
- region.Signal(address, size, write, exemptId);
- }
- }
- }
- }
-
- if (shouldThrow)
- {
- _invalidAccessHandler?.Invoke(address);
-
- // We can't continue - it's impossible to remove protection from the page.
- // Even if the access handler wants us to continue, we wouldn't be able to.
- throw new InvalidMemoryRegionException();
- }
-
- return true;
- }
-
- /// <summary>
- /// Reprotect a given virtual region. The virtual memory manager will handle this.
- /// </summary>
- /// <param name="region">Region to reprotect</param>
- /// <param name="permission">Memory permission to protect with</param>
- internal void ProtectVirtualRegion(VirtualRegion region, MemoryPermission permission)
- {
- _memoryManager.TrackingReprotect(region.Address, region.Size, permission);
- }
-
- /// <summary>
- /// Returns the number of virtual regions currently being tracked.
- /// Useful for tests and metrics.
- /// </summary>
- /// <returns>The number of virtual regions</returns>
- public int GetRegionCount()
- {
- lock (TrackingLock)
- {
- return _virtualRegions.Count;
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/MultiRegionHandle.cs b/Ryujinx.Memory/Tracking/MultiRegionHandle.cs
deleted file mode 100644
index 68fc5e75..00000000
--- a/Ryujinx.Memory/Tracking/MultiRegionHandle.cs
+++ /dev/null
@@ -1,415 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Numerics;
-using System.Runtime.CompilerServices;
-using System.Threading;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A region handle that tracks a large region using many smaller handles, to provide
- /// granular tracking that can be used to track partial updates. Backed by a bitmap
- /// to improve performance when scanning large regions.
- /// </summary>
- public class MultiRegionHandle : IMultiRegionHandle
- {
- /// <summary>
- /// A list of region handles for each granularity sized chunk of the whole region.
- /// </summary>
- private readonly RegionHandle[] _handles;
- private readonly ulong Address;
- private readonly ulong Granularity;
- private readonly ulong Size;
-
- private ConcurrentBitmap _dirtyBitmap;
-
- private int _sequenceNumber;
- private BitMap _sequenceNumberBitmap;
- private BitMap _dirtyCheckedBitmap;
- private int _uncheckedHandles;
-
- public bool Dirty { get; private set; } = true;
-
- internal MultiRegionHandle(
- MemoryTracking tracking,
- ulong address,
- ulong size,
- IEnumerable<IRegionHandle> handles,
- ulong granularity,
- int id)
- {
- _handles = new RegionHandle[(size + granularity - 1) / granularity];
- Granularity = granularity;
-
- _dirtyBitmap = new ConcurrentBitmap(_handles.Length, true);
- _sequenceNumberBitmap = new BitMap(_handles.Length);
- _dirtyCheckedBitmap = new BitMap(_handles.Length);
-
- int i = 0;
-
- if (handles != null)
- {
- // Inherit from the handles we were given. Any gaps must be filled with new handles,
- // and old handles larger than our granularity must copy their state onto new granular handles and dispose.
- // It is assumed that the provided handles do not overlap, in order, are on page boundaries,
- // and don't extend past the requested range.
-
- foreach (RegionHandle handle in handles)
- {
- int startIndex = (int)((handle.RealAddress - address) / granularity);
-
- // Fill any gap left before this handle.
- while (i < startIndex)
- {
- RegionHandle fillHandle = tracking.BeginTrackingBitmap(address + (ulong)i * granularity, granularity, _dirtyBitmap, i, id);
- fillHandle.Parent = this;
- _handles[i++] = fillHandle;
- }
-
- lock (tracking.TrackingLock)
- {
- if (handle is RegionHandle bitHandle && handle.Size == granularity)
- {
- handle.Parent = this;
-
- bitHandle.ReplaceBitmap(_dirtyBitmap, i);
-
- _handles[i++] = bitHandle;
- }
- else
- {
- int endIndex = (int)((handle.RealEndAddress - address) / granularity);
-
- while (i < endIndex)
- {
- RegionHandle splitHandle = tracking.BeginTrackingBitmap(address + (ulong)i * granularity, granularity, _dirtyBitmap, i, id);
- splitHandle.Parent = this;
-
- splitHandle.Reprotect(handle.Dirty);
-
- RegionSignal signal = handle.PreAction;
- if (signal != null)
- {
- splitHandle.RegisterAction(signal);
- }
-
- _handles[i++] = splitHandle;
- }
-
- handle.Dispose();
- }
- }
- }
- }
-
- // Fill any remaining space with new handles.
- while (i < _handles.Length)
- {
- RegionHandle handle = tracking.BeginTrackingBitmap(address + (ulong)i * granularity, granularity, _dirtyBitmap, i, id);
- handle.Parent = this;
- _handles[i++] = handle;
- }
-
- _uncheckedHandles = _handles.Length;
-
- Address = address;
- Size = size;
- }
-
- public void SignalWrite()
- {
- Dirty = true;
- }
-
- public IEnumerable<RegionHandle> GetHandles()
- {
- return _handles;
- }
-
- public void ForceDirty(ulong address, ulong size)
- {
- Dirty = true;
-
- int startHandle = (int)((address - Address) / Granularity);
- int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
-
- for (int i = startHandle; i <= lastHandle; i++)
- {
- if (_sequenceNumberBitmap.Clear(i))
- {
- _uncheckedHandles++;
- }
-
- _handles[i].ForceDirty();
- }
- }
-
- public void QueryModified(Action<ulong, ulong> modifiedAction)
- {
- if (!Dirty)
- {
- return;
- }
-
- Dirty = false;
-
- QueryModified(Address, Size, modifiedAction);
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private void ParseDirtyBits(long dirtyBits, ref int baseBit, ref int prevHandle, ref ulong rgStart, ref ulong rgSize, Action<ulong, ulong> modifiedAction)
- {
- while (dirtyBits != 0)
- {
- int bit = BitOperations.TrailingZeroCount(dirtyBits);
-
- dirtyBits &= ~(1L << bit);
-
- int handleIndex = baseBit + bit;
-
- RegionHandle handle = _handles[handleIndex];
-
- if (handleIndex != prevHandle + 1)
- {
- // Submit handles scanned until the gap as dirty
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- rgSize = 0;
- }
-
- rgStart = handle.RealAddress;
- }
-
- if (handle.Dirty)
- {
- rgSize += handle.RealSize;
- handle.Reprotect();
- }
-
- prevHandle = handleIndex;
- }
-
- baseBit += ConcurrentBitmap.IntSize;
- }
-
- public void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction)
- {
- int startHandle = (int)((address - Address) / Granularity);
- int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
-
- ulong rgStart = Address + (ulong)startHandle * Granularity;
-
- if (startHandle == lastHandle)
- {
- RegionHandle handle = _handles[startHandle];
-
- if (handle.Dirty)
- {
- handle.Reprotect();
- modifiedAction(rgStart, handle.RealSize);
- }
-
- return;
- }
-
- ulong rgSize = 0;
-
- long[] masks = _dirtyBitmap.Masks;
-
- int startIndex = startHandle >> ConcurrentBitmap.IntShift;
- int startBit = startHandle & ConcurrentBitmap.IntMask;
- long startMask = -1L << startBit;
-
- int endIndex = lastHandle >> ConcurrentBitmap.IntShift;
- int endBit = lastHandle & ConcurrentBitmap.IntMask;
- long endMask = (long)(ulong.MaxValue >> (ConcurrentBitmap.IntMask - endBit));
-
- long startValue = Volatile.Read(ref masks[startIndex]);
-
- int baseBit = startIndex << ConcurrentBitmap.IntShift;
- int prevHandle = startHandle - 1;
-
- if (startIndex == endIndex)
- {
- ParseDirtyBits(startValue & startMask & endMask, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
- else
- {
- ParseDirtyBits(startValue & startMask, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
-
- for (int i = startIndex + 1; i < endIndex; i++)
- {
- ParseDirtyBits(Volatile.Read(ref masks[i]), ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
-
- long endValue = Volatile.Read(ref masks[endIndex]);
-
- ParseDirtyBits(endValue & endMask, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
-
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- }
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private void ParseDirtyBits(long dirtyBits, long mask, int index, long[] seqMasks, long[] checkMasks, ref int baseBit, ref int prevHandle, ref ulong rgStart, ref ulong rgSize, Action<ulong, ulong> modifiedAction)
- {
- long seqMask = mask & ~seqMasks[index];
- long checkMask = (~dirtyBits) & seqMask;
- dirtyBits &= seqMask;
-
- while (dirtyBits != 0)
- {
- int bit = BitOperations.TrailingZeroCount(dirtyBits);
- long bitValue = 1L << bit;
-
- dirtyBits &= ~bitValue;
-
- int handleIndex = baseBit + bit;
-
- RegionHandle handle = _handles[handleIndex];
-
- if (handleIndex != prevHandle + 1)
- {
- // Submit handles scanned until the gap as dirty
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- rgSize = 0;
- }
- rgStart = handle.RealAddress;
- }
-
- rgSize += handle.RealSize;
- handle.Reprotect(false, (checkMasks[index] & bitValue) == 0);
-
- checkMasks[index] &= ~bitValue;
-
- prevHandle = handleIndex;
- }
-
- checkMasks[index] |= checkMask;
- seqMasks[index] |= mask;
- _uncheckedHandles -= BitOperations.PopCount((ulong)seqMask);
-
- baseBit += ConcurrentBitmap.IntSize;
- }
-
- public void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction, int sequenceNumber)
- {
- int startHandle = (int)((address - Address) / Granularity);
- int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
-
- ulong rgStart = Address + (ulong)startHandle * Granularity;
-
- if (sequenceNumber != _sequenceNumber)
- {
- if (_uncheckedHandles != _handles.Length)
- {
- _sequenceNumberBitmap.Clear();
- _uncheckedHandles = _handles.Length;
- }
-
- _sequenceNumber = sequenceNumber;
- }
-
- if (startHandle == lastHandle)
- {
- var handle = _handles[startHandle];
- if (_sequenceNumberBitmap.Set(startHandle))
- {
- _uncheckedHandles--;
-
- if (handle.DirtyOrVolatile())
- {
- handle.Reprotect();
-
- modifiedAction(rgStart, handle.RealSize);
- }
- }
-
- return;
- }
-
- if (_uncheckedHandles == 0)
- {
- return;
- }
-
- ulong rgSize = 0;
-
- long[] seqMasks = _sequenceNumberBitmap.Masks;
- long[] checkedMasks = _dirtyCheckedBitmap.Masks;
- long[] masks = _dirtyBitmap.Masks;
-
- int startIndex = startHandle >> ConcurrentBitmap.IntShift;
- int startBit = startHandle & ConcurrentBitmap.IntMask;
- long startMask = -1L << startBit;
-
- int endIndex = lastHandle >> ConcurrentBitmap.IntShift;
- int endBit = lastHandle & ConcurrentBitmap.IntMask;
- long endMask = (long)(ulong.MaxValue >> (ConcurrentBitmap.IntMask - endBit));
-
- long startValue = Volatile.Read(ref masks[startIndex]);
-
- int baseBit = startIndex << ConcurrentBitmap.IntShift;
- int prevHandle = startHandle - 1;
-
- if (startIndex == endIndex)
- {
- ParseDirtyBits(startValue, startMask & endMask, startIndex, seqMasks, checkedMasks, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
- else
- {
- ParseDirtyBits(startValue, startMask, startIndex, seqMasks, checkedMasks, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
-
- for (int i = startIndex + 1; i < endIndex; i++)
- {
- ParseDirtyBits(Volatile.Read(ref masks[i]), -1L, i, seqMasks, checkedMasks, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
-
- long endValue = Volatile.Read(ref masks[endIndex]);
-
- ParseDirtyBits(endValue, endMask, endIndex, seqMasks, checkedMasks, ref baseBit, ref prevHandle, ref rgStart, ref rgSize, modifiedAction);
- }
-
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- }
- }
-
- public void RegisterAction(ulong address, ulong size, RegionSignal action)
- {
- int startHandle = (int)((address - Address) / Granularity);
- int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
-
- for (int i = startHandle; i <= lastHandle; i++)
- {
- _handles[i].RegisterAction(action);
- }
- }
-
- public void RegisterPreciseAction(ulong address, ulong size, PreciseRegionSignal action)
- {
- int startHandle = (int)((address - Address) / Granularity);
- int lastHandle = (int)((address + (size - 1) - Address) / Granularity);
-
- for (int i = startHandle; i <= lastHandle; i++)
- {
- _handles[i].RegisterPreciseAction(action);
- }
- }
-
- public void Dispose()
- {
- foreach (var handle in _handles)
- {
- handle.Dispose();
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/PreciseRegionSignal.cs b/Ryujinx.Memory/Tracking/PreciseRegionSignal.cs
deleted file mode 100644
index 038f9595..00000000
--- a/Ryujinx.Memory/Tracking/PreciseRegionSignal.cs
+++ /dev/null
@@ -1,4 +0,0 @@
-namespace Ryujinx.Memory.Tracking
-{
- public delegate bool PreciseRegionSignal(ulong address, ulong size, bool write);
-}
diff --git a/Ryujinx.Memory/Tracking/RegionHandle.cs b/Ryujinx.Memory/Tracking/RegionHandle.cs
deleted file mode 100644
index 7a59f9f2..00000000
--- a/Ryujinx.Memory/Tracking/RegionHandle.cs
+++ /dev/null
@@ -1,464 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A tracking handle for a given region of virtual memory. The Dirty flag is updated whenever any changes are made,
- /// and an action can be performed when the region is read to or written from.
- /// </summary>
- public class RegionHandle : IRegionHandle
- {
- /// <summary>
- /// If more than this number of checks have been performed on a dirty flag since its last reprotect,
- /// then it is dirtied infrequently.
- /// </summary>
- private const int CheckCountForInfrequent = 3;
-
- /// <summary>
- /// Number of frequent dirty/consume in a row to make this handle volatile.
- /// </summary>
- private const int VolatileThreshold = 5;
-
- public bool Dirty
- {
- get
- {
- return Bitmap.IsSet(DirtyBit);
- }
- protected set
- {
- Bitmap.Set(DirtyBit, value);
- }
- }
-
- internal int SequenceNumber { get; set; }
- internal int Id { get; }
-
- public bool Unmapped { get; private set; }
-
- public ulong Address { get; }
- public ulong Size { get; }
- public ulong EndAddress { get; }
-
- public ulong RealAddress { get; }
- public ulong RealSize { get; }
- public ulong RealEndAddress { get; }
-
- internal IMultiRegionHandle Parent { get; set; }
-
- private event Action _onDirty;
-
- private object _preActionLock = new object();
- private RegionSignal _preAction; // Action to perform before a read or write. This will block the memory access.
- private PreciseRegionSignal _preciseAction; // Action to perform on a precise read or write.
- private readonly List<VirtualRegion> _regions;
- private readonly MemoryTracking _tracking;
- private bool _disposed;
-
- private int _checkCount = 0;
- private int _volatileCount = 0;
- private bool _volatile;
-
- internal MemoryPermission RequiredPermission
- {
- get
- {
- // If this is unmapped, allow reprotecting as RW as it can't be dirtied.
- // This is required for the partial unmap cases where part of the data are still being accessed.
- if (Unmapped)
- {
- return MemoryPermission.ReadAndWrite;
- }
-
- if (_preAction != null)
- {
- return MemoryPermission.None;
- }
-
- return Dirty ? MemoryPermission.ReadAndWrite : MemoryPermission.Read;
- }
- }
-
- internal RegionSignal PreAction => _preAction;
-
- internal ConcurrentBitmap Bitmap;
- internal int DirtyBit;
-
- /// <summary>
- /// Create a new bitmap backed region handle. The handle is registered with the given tracking object,
- /// and will be notified of any changes to the specified region.
- /// </summary>
- /// <param name="tracking">Tracking object for the target memory block</param>
- /// <param name="address">Virtual address of the region to track</param>
- /// <param name="size">Size of the region to track</param>
- /// <param name="realAddress">The real, unaligned address of the handle</param>
- /// <param name="realSize">The real, unaligned size of the handle</param>
- /// <param name="bitmap">The bitmap the dirty flag for this handle is stored in</param>
- /// <param name="bit">The bit index representing the dirty flag for this handle</param>
- /// <param name="id">Handle ID</param>
- /// <param name="mapped">True if the region handle starts mapped</param>
- internal RegionHandle(
- MemoryTracking tracking,
- ulong address,
- ulong size,
- ulong realAddress,
- ulong realSize,
- ConcurrentBitmap bitmap,
- int bit,
- int id,
- bool mapped = true)
- {
- Bitmap = bitmap;
- DirtyBit = bit;
-
- Dirty = mapped;
-
- Id = id;
-
- Unmapped = !mapped;
- Address = address;
- Size = size;
- EndAddress = address + size;
-
- RealAddress = realAddress;
- RealSize = realSize;
- RealEndAddress = realAddress + realSize;
-
- _tracking = tracking;
- _regions = tracking.GetVirtualRegionsForHandle(address, size);
- foreach (var region in _regions)
- {
- region.Handles.Add(this);
- }
- }
-
- /// <summary>
- /// Create a new region handle. The handle is registered with the given tracking object,
- /// and will be notified of any changes to the specified region.
- /// </summary>
- /// <param name="tracking">Tracking object for the target memory block</param>
- /// <param name="address">Virtual address of the region to track</param>
- /// <param name="size">Size of the region to track</param>
- /// <param name="realAddress">The real, unaligned address of the handle</param>
- /// <param name="realSize">The real, unaligned size of the handle</param>
- /// <param name="id">Handle ID</param>
- /// <param name="mapped">True if the region handle starts mapped</param>
- internal RegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong realAddress, ulong realSize, int id, bool mapped = true)
- {
- Bitmap = new ConcurrentBitmap(1, mapped);
-
- Id = id;
-
- Unmapped = !mapped;
-
- Address = address;
- Size = size;
- EndAddress = address + size;
-
- RealAddress = realAddress;
- RealSize = realSize;
- RealEndAddress = realAddress + realSize;
-
- _tracking = tracking;
- _regions = tracking.GetVirtualRegionsForHandle(address, size);
- foreach (var region in _regions)
- {
- region.Handles.Add(this);
- }
- }
-
- /// <summary>
- /// Replace the bitmap and bit index used to track dirty state.
- /// </summary>
- /// <remarks>
- /// The tracking lock should be held when this is called, to ensure neither bitmap is modified.
- /// </remarks>
- /// <param name="bitmap">The bitmap the dirty flag for this handle is stored in</param>
- /// <param name="bit">The bit index representing the dirty flag for this handle</param>
- internal void ReplaceBitmap(ConcurrentBitmap bitmap, int bit)
- {
- // Assumes the tracking lock is held, so nothing else can signal right now.
-
- var oldBitmap = Bitmap;
- var oldBit = DirtyBit;
-
- bitmap.Set(bit, Dirty);
-
- Bitmap = bitmap;
- DirtyBit = bit;
-
- Dirty |= oldBitmap.IsSet(oldBit);
- }
-
- /// <summary>
- /// Clear the volatile state of this handle.
- /// </summary>
- private void ClearVolatile()
- {
- _volatileCount = 0;
- _volatile = false;
- }
-
- /// <summary>
- /// Check if this handle is dirty, or if it is volatile. (changes very often)
- /// </summary>
- /// <returns>True if the handle is dirty or volatile, false otherwise</returns>
- public bool DirtyOrVolatile()
- {
- _checkCount++;
- return _volatile || Dirty;
- }
-
- /// <summary>
- /// Signal that a memory action occurred within this handle's virtual regions.
- /// </summary>
- /// <param name="address">Address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <param name="handleIterable">Reference to the handles being iterated, in case the list needs to be copied</param>
- internal void Signal(ulong address, ulong size, bool write, ref IList<RegionHandle> handleIterable)
- {
- // If this handle was already unmapped (even if just partially),
- // then we have nothing to do until it is mapped again.
- // The pre-action should be still consumed to avoid flushing on remap.
- if (Unmapped)
- {
- Interlocked.Exchange(ref _preAction, null);
- return;
- }
-
- if (_preAction != null)
- {
- // Limit the range to within this handle.
- ulong maxAddress = Math.Max(address, RealAddress);
- ulong minEndAddress = Math.Min(address + size, RealAddress + RealSize);
-
- // Copy the handles list in case it changes when we're out of the lock.
- if (handleIterable is List<RegionHandle>)
- {
- handleIterable = handleIterable.ToArray();
- }
-
- // Temporarily release the tracking lock while we're running the action.
- Monitor.Exit(_tracking.TrackingLock);
-
- try
- {
- lock (_preActionLock)
- {
- _preAction?.Invoke(maxAddress, minEndAddress - maxAddress);
-
- // The action is removed after it returns, to ensure that the null check above succeeds when
- // it's still in progress rather than continuing and possibly missing a required data flush.
- Interlocked.Exchange(ref _preAction, null);
- }
- }
- finally
- {
- Monitor.Enter(_tracking.TrackingLock);
- }
- }
-
- if (write)
- {
- bool oldDirty = Dirty;
- Dirty = true;
- if (!oldDirty)
- {
- _onDirty?.Invoke();
- }
- Parent?.SignalWrite();
- }
- }
-
- /// <summary>
- /// Signal that a precise memory action occurred within this handle's virtual regions.
- /// If there is no precise action, or the action returns false, the normal signal handler will be called.
- /// </summary>
- /// <param name="address">Address accessed</param>
- /// <param name="size">Size of the region affected in bytes</param>
- /// <param name="write">Whether the region was written to or read</param>
- /// <param name="handleIterable">Reference to the handles being iterated, in case the list needs to be copied</param>
- /// <returns>True if a precise action was performed and returned true, false otherwise</returns>
- internal bool SignalPrecise(ulong address, ulong size, bool write, ref IList<RegionHandle> handleIterable)
- {
- if (!Unmapped && _preciseAction != null && _preciseAction(address, size, write))
- {
- return true;
- }
-
- Signal(address, size, write, ref handleIterable);
-
- return false;
- }
-
- /// <summary>
- /// Force this handle to be dirty, without reprotecting.
- /// </summary>
- public void ForceDirty()
- {
- Dirty = true;
- }
-
- /// <summary>
- /// Consume the dirty flag for this handle, and reprotect so it can be set on the next write.
- /// </summary>
- /// <param name="asDirty">True if the handle should be reprotected as dirty, rather than have it cleared</param>
- /// <param name="consecutiveCheck">True if this reprotect is the result of consecutive dirty checks</param>
- public void Reprotect(bool asDirty, bool consecutiveCheck = false)
- {
- if (_volatile) return;
-
- Dirty = asDirty;
-
- bool protectionChanged = false;
-
- lock (_tracking.TrackingLock)
- {
- foreach (VirtualRegion region in _regions)
- {
- protectionChanged |= region.UpdateProtection();
- }
- }
-
- if (!protectionChanged)
- {
- // Counteract the check count being incremented when this handle was forced dirty.
- // It doesn't count for protected write tracking.
-
- _checkCount--;
- }
- else if (!asDirty)
- {
- if (consecutiveCheck || (_checkCount > 0 && _checkCount < CheckCountForInfrequent))
- {
- if (++_volatileCount >= VolatileThreshold && _preAction == null)
- {
- _volatile = true;
- return;
- }
- }
- else
- {
- _volatileCount = 0;
- }
-
- _checkCount = 0;
- }
- }
-
- /// <summary>
- /// Consume the dirty flag for this handle, and reprotect so it can be set on the next write.
- /// </summary>
- /// <param name="asDirty">True if the handle should be reprotected as dirty, rather than have it cleared</param>
- public void Reprotect(bool asDirty = false)
- {
- Reprotect(asDirty, false);
- }
-
- /// <summary>
- /// Register an action to perform when the tracked region is read or written.
- /// The action is automatically removed after it runs.
- /// </summary>
- /// <param name="action">Action to call on read or write</param>
- public void RegisterAction(RegionSignal action)
- {
- ClearVolatile();
-
- lock (_preActionLock)
- {
- RegionSignal lastAction = Interlocked.Exchange(ref _preAction, action);
-
- if (lastAction == null && action != lastAction)
- {
- lock (_tracking.TrackingLock)
- {
- foreach (VirtualRegion region in _regions)
- {
- region.UpdateProtection();
- }
- }
- }
- }
- }
-
- /// <summary>
- /// Register an action to perform when a precise access occurs (one with exact address and size).
- /// If the action returns true, read/write tracking are skipped.
- /// </summary>
- /// <param name="action">Action to call on read or write</param>
- public void RegisterPreciseAction(PreciseRegionSignal action)
- {
- _preciseAction = action;
- }
-
- /// <summary>
- /// Register an action to perform when the region is written to.
- /// This action will not be removed when it is called - it is called each time the dirty flag is set.
- /// </summary>
- /// <param name="action">Action to call on dirty</param>
- public void RegisterDirtyEvent(Action action)
- {
- _onDirty += action;
- }
-
- /// <summary>
- /// Add a child virtual region to this handle.
- /// </summary>
- /// <param name="region">Virtual region to add as a child</param>
- internal void AddChild(VirtualRegion region)
- {
- _regions.Add(region);
- }
-
- /// <summary>
- /// Signal that this handle has been mapped or unmapped.
- /// </summary>
- /// <param name="mapped">True if the handle has been mapped, false if unmapped</param>
- internal void SignalMappingChanged(bool mapped)
- {
- if (Unmapped == mapped)
- {
- Unmapped = !mapped;
-
- if (Unmapped)
- {
- ClearVolatile();
- Dirty = false;
- }
- }
- }
-
- /// <summary>
- /// Check if this region overlaps with another.
- /// </summary>
- /// <param name="address">Base address</param>
- /// <param name="size">Size of the region</param>
- /// <returns>True if overlapping, false otherwise</returns>
- public bool OverlapsWith(ulong address, ulong size)
- {
- return Address < address + size && address < EndAddress;
- }
-
- /// <summary>
- /// Dispose the handle. Within the tracking lock, this removes references from virtual regions.
- /// </summary>
- public void Dispose()
- {
- ObjectDisposedException.ThrowIf(_disposed, this);
-
- _disposed = true;
-
- lock (_tracking.TrackingLock)
- {
- foreach (VirtualRegion region in _regions)
- {
- region.RemoveHandle(this);
- }
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/RegionSignal.cs b/Ryujinx.Memory/Tracking/RegionSignal.cs
deleted file mode 100644
index c8a28d7d..00000000
--- a/Ryujinx.Memory/Tracking/RegionSignal.cs
+++ /dev/null
@@ -1,4 +0,0 @@
-namespace Ryujinx.Memory.Tracking
-{
- public delegate void RegionSignal(ulong address, ulong size);
-}
diff --git a/Ryujinx.Memory/Tracking/SmartMultiRegionHandle.cs b/Ryujinx.Memory/Tracking/SmartMultiRegionHandle.cs
deleted file mode 100644
index 4acddefa..00000000
--- a/Ryujinx.Memory/Tracking/SmartMultiRegionHandle.cs
+++ /dev/null
@@ -1,280 +0,0 @@
-using System;
-using System.Runtime.CompilerServices;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A MultiRegionHandle that attempts to segment a region's handles into the regions requested
- /// to avoid iterating over granular chunks for canonically large regions.
- /// If minimum granularity is to be expected, use MultiRegionHandle.
- /// </summary>
- public class SmartMultiRegionHandle : IMultiRegionHandle
- {
- /// <summary>
- /// A list of region handles starting at each granularity size increment.
- /// </summary>
- private readonly RegionHandle[] _handles;
- private readonly ulong _address;
- private readonly ulong _granularity;
- private readonly ulong _size;
- private MemoryTracking _tracking;
- private readonly int _id;
-
- public bool Dirty { get; private set; } = true;
-
- internal SmartMultiRegionHandle(MemoryTracking tracking, ulong address, ulong size, ulong granularity, int id)
- {
- // For this multi-region handle, the handle list starts empty.
- // As regions are queried, they are added to the _handles array at their start index.
- // When a region being added overlaps another, the existing region is split.
- // A query can therefore scan multiple regions, though with no overlaps they can cover a large area.
-
- _tracking = tracking;
- _handles = new RegionHandle[size / granularity];
- _granularity = granularity;
-
- _address = address;
- _size = size;
- _id = id;
- }
-
- public void SignalWrite()
- {
- Dirty = true;
- }
-
- public void ForceDirty(ulong address, ulong size)
- {
- foreach (var handle in _handles)
- {
- if (handle != null && handle.OverlapsWith(address, size))
- {
- handle.ForceDirty();
- }
- }
- }
-
- public void RegisterAction(RegionSignal action)
- {
- foreach (var handle in _handles)
- {
- if (handle != null)
- {
- handle?.RegisterAction((address, size) => action(handle.Address, handle.Size));
- }
- }
- }
-
- public void RegisterPreciseAction(PreciseRegionSignal action)
- {
- foreach (var handle in _handles)
- {
- if (handle != null)
- {
- handle?.RegisterPreciseAction((address, size, write) => action(handle.Address, handle.Size, write));
- }
- }
- }
-
- public void QueryModified(Action<ulong, ulong> modifiedAction)
- {
- if (!Dirty)
- {
- return;
- }
-
- Dirty = false;
-
- QueryModified(_address, _size, modifiedAction);
- }
-
- [MethodImpl(MethodImplOptions.AggressiveInlining)]
- private ulong HandlesToBytes(int handles)
- {
- return (ulong)handles * _granularity;
- }
-
- private void SplitHandle(int handleIndex, int splitIndex)
- {
- RegionHandle handle = _handles[handleIndex];
- ulong address = _address + HandlesToBytes(handleIndex);
- ulong size = HandlesToBytes(splitIndex - handleIndex);
-
- // First, the target handle must be removed. Its data can still be used to determine the new handles.
- RegionSignal signal = handle.PreAction;
- handle.Dispose();
-
- RegionHandle splitLow = _tracking.BeginTracking(address, size, _id);
- splitLow.Parent = this;
- if (signal != null)
- {
- splitLow.RegisterAction(signal);
- }
- _handles[handleIndex] = splitLow;
-
- RegionHandle splitHigh = _tracking.BeginTracking(address + size, handle.Size - size, _id);
- splitHigh.Parent = this;
- if (signal != null)
- {
- splitHigh.RegisterAction(signal);
- }
- _handles[splitIndex] = splitHigh;
- }
-
- private void CreateHandle(int startHandle, int lastHandle)
- {
- ulong startAddress = _address + HandlesToBytes(startHandle);
-
- // Scan for the first handle before us. If it's overlapping us, it must be split.
- for (int i = startHandle - 1; i >= 0; i--)
- {
- RegionHandle handle = _handles[i];
- if (handle != null)
- {
- if (handle.EndAddress > startAddress)
- {
- SplitHandle(i, startHandle);
- return; // The remainer of this handle should be filled in later on.
- }
- break;
- }
- }
-
- // Scan for handles after us. We should create a handle that goes up to this handle's start point, if present.
- for (int i = startHandle + 1; i <= lastHandle; i++)
- {
- RegionHandle handle = _handles[i];
- if (handle != null)
- {
- // Fill up to the found handle.
- handle = _tracking.BeginTracking(startAddress, HandlesToBytes(i - startHandle), _id);
- handle.Parent = this;
- _handles[startHandle] = handle;
- return;
- }
- }
-
- // Can fill the whole range.
- _handles[startHandle] = _tracking.BeginTracking(startAddress, HandlesToBytes(1 + lastHandle - startHandle), _id);
- _handles[startHandle].Parent = this;
- }
-
- public void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction)
- {
- int startHandle = (int)((address - _address) / _granularity);
- int lastHandle = (int)((address + (size - 1) - _address) / _granularity);
-
- ulong rgStart = _address + (ulong)startHandle * _granularity;
- ulong rgSize = 0;
-
- ulong endAddress = _address + ((ulong)lastHandle + 1) * _granularity;
-
- int i = startHandle;
-
- while (i <= lastHandle)
- {
- RegionHandle handle = _handles[i];
- if (handle == null)
- {
- // Missing handle. A new handle must be created.
- CreateHandle(i, lastHandle);
- handle = _handles[i];
- }
-
- if (handle.EndAddress > endAddress)
- {
- // End address of handle is beyond the end of the search. Force a split.
- SplitHandle(i, lastHandle + 1);
- handle = _handles[i];
- }
-
- if (handle.Dirty)
- {
- rgSize += handle.Size;
- handle.Reprotect();
- }
- else
- {
- // Submit the region scanned so far as dirty
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- rgSize = 0;
- }
- rgStart = handle.EndAddress;
- }
-
- i += (int)(handle.Size / _granularity);
- }
-
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- }
- }
-
- public void QueryModified(ulong address, ulong size, Action<ulong, ulong> modifiedAction, int sequenceNumber)
- {
- int startHandle = (int)((address - _address) / _granularity);
- int lastHandle = (int)((address + (size - 1) - _address) / _granularity);
-
- ulong rgStart = _address + (ulong)startHandle * _granularity;
- ulong rgSize = 0;
-
- ulong endAddress = _address + ((ulong)lastHandle + 1) * _granularity;
-
- int i = startHandle;
-
- while (i <= lastHandle)
- {
- RegionHandle handle = _handles[i];
- if (handle == null)
- {
- // Missing handle. A new handle must be created.
- CreateHandle(i, lastHandle);
- handle = _handles[i];
- }
-
- if (handle.EndAddress > endAddress)
- {
- // End address of handle is beyond the end of the search. Force a split.
- SplitHandle(i, lastHandle + 1);
- handle = _handles[i];
- }
-
- if (handle.Dirty && sequenceNumber != handle.SequenceNumber)
- {
- rgSize += handle.Size;
- handle.Reprotect();
- }
- else
- {
- // Submit the region scanned so far as dirty
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- rgSize = 0;
- }
- rgStart = handle.EndAddress;
- }
-
- handle.SequenceNumber = sequenceNumber;
-
- i += (int)(handle.Size / _granularity);
- }
-
- if (rgSize != 0)
- {
- modifiedAction(rgStart, rgSize);
- }
- }
-
- public void Dispose()
- {
- foreach (var handle in _handles)
- {
- handle?.Dispose();
- }
- }
- }
-}
diff --git a/Ryujinx.Memory/Tracking/VirtualRegion.cs b/Ryujinx.Memory/Tracking/VirtualRegion.cs
deleted file mode 100644
index 9651426b..00000000
--- a/Ryujinx.Memory/Tracking/VirtualRegion.cs
+++ /dev/null
@@ -1,144 +0,0 @@
-using Ryujinx.Memory.Range;
-using System.Collections.Generic;
-
-namespace Ryujinx.Memory.Tracking
-{
- /// <summary>
- /// A region of virtual memory.
- /// </summary>
- class VirtualRegion : AbstractRegion
- {
- public List<RegionHandle> Handles = new List<RegionHandle>();
-
- private readonly MemoryTracking _tracking;
- private MemoryPermission _lastPermission;
-
- public VirtualRegion(MemoryTracking tracking, ulong address, ulong size, MemoryPermission lastPermission = MemoryPermission.Invalid) : base(address, size)
- {
- _lastPermission = lastPermission;
- _tracking = tracking;
- }
-
- /// <inheritdoc/>
- public override void Signal(ulong address, ulong size, bool write, int? exemptId)
- {
- IList<RegionHandle> handles = Handles;
-
- for (int i = 0; i < handles.Count; i++)
- {
- if (exemptId == null || handles[i].Id != exemptId.Value)
- {
- handles[i].Signal(address, size, write, ref handles);
- }
- }
-
- UpdateProtection();
- }
-
- /// <inheritdoc/>
- public override void SignalPrecise(ulong address, ulong size, bool write, int? exemptId)
- {
- IList<RegionHandle> handles = Handles;
-
- bool allPrecise = true;
-
- for (int i = 0; i < handles.Count; i++)
- {
- if (exemptId == null || handles[i].Id != exemptId.Value)
- {
- allPrecise &= handles[i].SignalPrecise(address, size, write, ref handles);
- }
- }
-
- // Only update protection if a regular signal handler was called.
- // This allows precise actions to skip reprotection costs if they want (they can still do it manually).
- if (!allPrecise)
- {
- UpdateProtection();
- }
- }
-
- /// <summary>
- /// Signal that this region has been mapped or unmapped.
- /// </summary>
- /// <param name="mapped">True if the region has been mapped, false if unmapped</param>
- public void SignalMappingChanged(bool mapped)
- {
- _lastPermission = MemoryPermission.Invalid;
-
- foreach (RegionHandle handle in Handles)
- {
- handle.SignalMappingChanged(mapped);
- }
- }
-
- /// <summary>
- /// Gets the strictest permission that the child handles demand. Assumes that the tracking lock has been obtained.
- /// </summary>
- /// <returns>Protection level that this region demands</returns>
- public MemoryPermission GetRequiredPermission()
- {
- // Start with Read/Write, each handle can strip off permissions as necessary.
- // Assumes the tracking lock has already been obtained.
-
- MemoryPermission result = MemoryPermission.ReadAndWrite;
-
- foreach (var handle in Handles)
- {
- result &= handle.RequiredPermission;
- if (result == 0) return result;
- }
- return result;
- }
-
- /// <summary>
- /// Updates the protection for this virtual region.
- /// </summary>
- public bool UpdateProtection()
- {
- MemoryPermission permission = GetRequiredPermission();
-
- if (_lastPermission != permission)
- {
- _tracking.ProtectVirtualRegion(this, permission);
- _lastPermission = permission;
-
- return true;
- }
-
- return false;
- }
-
- /// <summary>
- /// Removes a handle from this virtual region. If there are no handles left, this virtual region is removed.
- /// </summary>
- /// <param name="handle">Handle to remove</param>
- public void RemoveHandle(RegionHandle handle)
- {
- lock (_tracking.TrackingLock)
- {
- Handles.Remove(handle);
- UpdateProtection();
- if (Handles.Count == 0)
- {
- _tracking.RemoveVirtual(this);
- }
- }
- }
-
- public override INonOverlappingRange Split(ulong splitAddress)
- {
- VirtualRegion newRegion = new VirtualRegion(_tracking, splitAddress, EndAddress - splitAddress, _lastPermission);
- Size = splitAddress - Address;
-
- // The new region inherits all of our parents.
- newRegion.Handles = new List<RegionHandle>(Handles);
- foreach (var parent in Handles)
- {
- parent.AddChild(newRegion);
- }
-
- return newRegion;
- }
- }
-}
diff --git a/Ryujinx.Memory/WindowsShared/MappingTree.cs b/Ryujinx.Memory/WindowsShared/MappingTree.cs
deleted file mode 100644
index 97758c2b..00000000
--- a/Ryujinx.Memory/WindowsShared/MappingTree.cs
+++ /dev/null
@@ -1,87 +0,0 @@
-using Ryujinx.Common.Collections;
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- /// <summary>
- /// A intrusive Red-Black Tree that also supports getting nodes overlapping a given range.
- /// </summary>
- /// <typeparam name="T">Type of the value stored on the node</typeparam>
- class MappingTree<T> : IntrusiveRedBlackTree<RangeNode<T>>
- {
- private const int ArrayGrowthSize = 16;
-
- public int GetNodes(ulong start, ulong end, ref RangeNode<T>[] overlaps, int overlapCount = 0)
- {
- RangeNode<T> node = this.GetNodeByKey(start);
-
- for (; node != null; node = node.Successor)
- {
- if (overlaps.Length <= overlapCount)
- {
- Array.Resize(ref overlaps, overlapCount + ArrayGrowthSize);
- }
-
- overlaps[overlapCount++] = node;
-
- if (node.End >= end)
- {
- break;
- }
- }
-
- return overlapCount;
- }
- }
-
- class RangeNode<T> : IntrusiveRedBlackTreeNode<RangeNode<T>>, IComparable<RangeNode<T>>, IComparable<ulong>
- {
- public ulong Start { get; }
- public ulong End { get; private set; }
- public T Value { get; }
-
- public RangeNode(ulong start, ulong end, T value)
- {
- Start = start;
- End = end;
- Value = value;
- }
-
- public void Extend(ulong sizeDelta)
- {
- End += sizeDelta;
- }
-
- public int CompareTo(RangeNode<T> other)
- {
- if (Start < other.Start)
- {
- return -1;
- }
- else if (Start <= other.End - 1UL)
- {
- return 0;
- }
- else
- {
- return 1;
- }
- }
-
- public int CompareTo(ulong address)
- {
- if (address < Start)
- {
- return 1;
- }
- else if (address <= End - 1UL)
- {
- return 0;
- }
- else
- {
- return -1;
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs b/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs
deleted file mode 100644
index 3022b661..00000000
--- a/Ryujinx.Memory/WindowsShared/PlaceholderManager.cs
+++ /dev/null
@@ -1,736 +0,0 @@
-using Ryujinx.Common.Collections;
-using Ryujinx.Common.Memory.PartialUnmaps;
-using System;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.Versioning;
-using System.Threading;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- /// <summary>
- /// Windows memory placeholder manager.
- /// </summary>
- [SupportedOSPlatform("windows")]
- class PlaceholderManager
- {
- private const int InitialOverlapsSize = 10;
-
- private readonly MappingTree<ulong> _mappings;
- private readonly MappingTree<MemoryPermission> _protections;
- private readonly IntPtr _partialUnmapStatePtr;
- private readonly Thread _partialUnmapTrimThread;
-
- /// <summary>
- /// Creates a new instance of the Windows memory placeholder manager.
- /// </summary>
- public PlaceholderManager()
- {
- _mappings = new MappingTree<ulong>();
- _protections = new MappingTree<MemoryPermission>();
-
- _partialUnmapStatePtr = PartialUnmapState.GlobalState;
-
- _partialUnmapTrimThread = new Thread(TrimThreadLocalMapLoop);
- _partialUnmapTrimThread.Name = "CPU.PartialUnmapTrimThread";
- _partialUnmapTrimThread.IsBackground = true;
- _partialUnmapTrimThread.Start();
- }
-
- /// <summary>
- /// Gets a reference to the partial unmap state struct.
- /// </summary>
- /// <returns>A reference to the partial unmap state struct</returns>
- private unsafe ref PartialUnmapState GetPartialUnmapState()
- {
- return ref Unsafe.AsRef<PartialUnmapState>((void*)_partialUnmapStatePtr);
- }
-
- /// <summary>
- /// Trims inactive threads from the partial unmap state's thread mapping every few seconds.
- /// Should be run in a Background thread so that it doesn't stop the program from closing.
- /// </summary>
- private void TrimThreadLocalMapLoop()
- {
- while (true)
- {
- Thread.Sleep(2000);
- GetPartialUnmapState().TrimThreads();
- }
- }
-
- /// <summary>
- /// Reserves a range of the address space to be later mapped as shared memory views.
- /// </summary>
- /// <param name="address">Start address of the region to reserve</param>
- /// <param name="size">Size in bytes of the region to reserve</param>
- public void ReserveRange(ulong address, ulong size)
- {
- lock (_mappings)
- {
- _mappings.Add(new RangeNode<ulong>(address, address + size, ulong.MaxValue));
- }
-
- lock (_protections)
- {
- _protections.Add(new RangeNode<MemoryPermission>(address, address + size, MemoryPermission.None));
- }
- }
-
- /// <summary>
- /// Unreserves a range of memory that has been previously reserved with <see cref="ReserveRange"/>.
- /// </summary>
- /// <param name="address">Start address of the region to unreserve</param>
- /// <param name="size">Size in bytes of the region to unreserve</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unreserving the memory</exception>
- public void UnreserveRange(ulong address, ulong size)
- {
- ulong endAddress = address + size;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(address);
- RangeNode<ulong> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
-
- if (IsMapped(node.Value))
- {
- if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)node.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
- }
-
- _mappings.Remove(node);
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
-
- RemoveProtection(address, size);
- }
-
- /// <summary>
- /// Maps a shared memory view on a previously reserved memory region.
- /// </summary>
- /// <param name="sharedMemory">Shared memory that will be the backing storage for the view</param>
- /// <param name="srcOffset">Offset in the shared memory to map</param>
- /// <param name="location">Address to map the view into</param>
- /// <param name="size">Size of the view in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- public void MapView(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- UnmapViewInternal(sharedMemory, location, size, owner, updateProtection: false);
- MapViewInternal(sharedMemory, srcOffset, location, size, updateProtection: true);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Maps a shared memory view on a previously reserved memory region.
- /// </summary>
- /// <param name="sharedMemory">Shared memory that will be the backing storage for the view</param>
- /// <param name="srcOffset">Offset in the shared memory to map</param>
- /// <param name="location">Address to map the view into</param>
- /// <param name="size">Size of the view in bytes</param>
- /// <param name="updateProtection">Indicates if the memory protections should be updated after the map</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error mapping the memory</exception>
- private void MapViewInternal(IntPtr sharedMemory, ulong srcOffset, IntPtr location, IntPtr size, bool updateProtection)
- {
- SplitForMap((ulong)location, (ulong)size, srcOffset);
-
- var ptr = WindowsApi.MapViewOfFile3(
- sharedMemory,
- WindowsApi.CurrentProcessHandle,
- location,
- srcOffset,
- size,
- 0x4000,
- MemoryProtection.ReadWrite,
- IntPtr.Zero,
- 0);
-
- if (ptr == IntPtr.Zero)
- {
- throw new WindowsApiException("MapViewOfFile3");
- }
-
- if (updateProtection)
- {
- UpdateProtection((ulong)location, (ulong)size, MemoryPermission.ReadAndWrite);
- }
- }
-
- /// <summary>
- /// Splits a larger placeholder, slicing at the start and end address, for a new memory mapping.
- /// </summary>
- /// <param name="address">Address to split</param>
- /// <param name="size">Size of the new region</param>
- /// <param name="backingOffset">Offset in the shared memory that will be mapped</param>
- private void SplitForMap(ulong address, ulong size, ulong backingOffset)
- {
- ulong endAddress = address + size;
-
- var overlaps = new RangeNode<ulong>[InitialOverlapsSize];
-
- lock (_mappings)
- {
- int count = _mappings.GetNodes(address, endAddress, ref overlaps);
-
- Debug.Assert(count == 1);
- Debug.Assert(!IsMapped(overlaps[0].Value));
-
- var overlap = overlaps[0];
-
- ulong overlapStart = overlap.Start;
- ulong overlapEnd = overlap.End;
- ulong overlapValue = overlap.Value;
-
- _mappings.Remove(overlap);
-
- bool overlapStartsBefore = overlapStart < address;
- bool overlapEndsAfter = overlapEnd > endAddress;
-
- if (overlapStartsBefore && overlapEndsAfter)
- {
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)size,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(overlapStart, address, overlapValue));
- _mappings.Add(new RangeNode<ulong>(endAddress, overlapEnd, AddBackingOffset(overlapValue, endAddress - overlapStart)));
- }
- else if (overlapStartsBefore)
- {
- ulong overlappedSize = overlapEnd - address;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)overlappedSize,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(overlapStart, address, overlapValue));
- }
- else if (overlapEndsAfter)
- {
- ulong overlappedSize = endAddress - overlapStart;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)overlapStart,
- (IntPtr)overlappedSize,
- AllocationType.Release | AllocationType.PreservePlaceholder));
-
- _mappings.Add(new RangeNode<ulong>(endAddress, overlapEnd, AddBackingOffset(overlapValue, overlappedSize)));
- }
-
- _mappings.Add(new RangeNode<ulong>(address, endAddress, backingOffset));
- }
- }
-
- /// <summary>
- /// Unmaps a view that has been previously mapped with <see cref="MapView"/>.
- /// </summary>
- /// <remarks>
- /// For "partial unmaps" (when not the entire mapped range is being unmapped), it might be
- /// necessary to unmap the whole range and then remap the sub-ranges that should remain mapped.
- /// </remarks>
- /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
- /// <param name="location">Address to unmap</param>
- /// <param name="size">Size of the region to unmap in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- public void UnmapView(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- UnmapViewInternal(sharedMemory, location, size, owner, updateProtection: true);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Unmaps a view that has been previously mapped with <see cref="MapView"/>.
- /// </summary>
- /// <remarks>
- /// For "partial unmaps" (when not the entire mapped range is being unmapped), it might be
- /// necessary to unmap the whole range and then remap the sub-ranges that should remain mapped.
- /// </remarks>
- /// <param name="sharedMemory">Shared memory that the view being unmapped belongs to</param>
- /// <param name="location">Address to unmap</param>
- /// <param name="size">Size of the region to unmap in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- /// <param name="updateProtection">Indicates if the memory protections should be updated after the unmap</param>
- /// <exception cref="WindowsApiException">Thrown when the Windows API returns an error unmapping or remapping the memory</exception>
- private void UnmapViewInternal(IntPtr sharedMemory, IntPtr location, IntPtr size, MemoryBlock owner, bool updateProtection)
- {
- ulong startAddress = (ulong)location;
- ulong unmapSize = (ulong)size;
- ulong endAddress = startAddress + unmapSize;
-
- var overlaps = new RangeNode<ulong>[InitialOverlapsSize];
- int count;
-
- lock (_mappings)
- {
- count = _mappings.GetNodes(startAddress, endAddress, ref overlaps);
- }
-
- for (int index = 0; index < count; index++)
- {
- var overlap = overlaps[index];
-
- if (IsMapped(overlap.Value))
- {
- lock (_mappings)
- {
- _mappings.Remove(overlap);
- _mappings.Add(new RangeNode<ulong>(overlap.Start, overlap.End, ulong.MaxValue));
- }
-
- bool overlapStartsBefore = overlap.Start < startAddress;
- bool overlapEndsAfter = overlap.End > endAddress;
-
- if (overlapStartsBefore || overlapEndsAfter)
- {
- // If the overlap extends beyond the region we are unmapping,
- // then we need to re-map the regions that are supposed to remain mapped.
- // This is necessary because Windows does not support partial view unmaps.
- // That is, you can only fully unmap a view that was previously mapped, you can't just unmap a chunck of it.
-
- ref var partialUnmapState = ref GetPartialUnmapState();
- ref var partialUnmapLock = ref partialUnmapState.PartialUnmapLock;
- partialUnmapLock.UpgradeToWriterLock();
-
- try
- {
- partialUnmapState.PartialUnmapsCount++;
-
- if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)overlap.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
-
- if (overlapStartsBefore)
- {
- ulong remapSize = startAddress - overlap.Start;
-
- MapViewInternal(sharedMemory, overlap.Value, (IntPtr)overlap.Start, (IntPtr)remapSize, updateProtection: false);
- RestoreRangeProtection(overlap.Start, remapSize);
- }
-
- if (overlapEndsAfter)
- {
- ulong overlappedSize = endAddress - overlap.Start;
- ulong remapBackingOffset = overlap.Value + overlappedSize;
- ulong remapAddress = overlap.Start + overlappedSize;
- ulong remapSize = overlap.End - endAddress;
-
- MapViewInternal(sharedMemory, remapBackingOffset, (IntPtr)remapAddress, (IntPtr)remapSize, updateProtection: false);
- RestoreRangeProtection(remapAddress, remapSize);
- }
- }
- finally
- {
- partialUnmapLock.DowngradeFromWriterLock();
- }
- }
- else if (!WindowsApi.UnmapViewOfFile2(WindowsApi.CurrentProcessHandle, (IntPtr)overlap.Start, 2))
- {
- throw new WindowsApiException("UnmapViewOfFile2");
- }
- }
- }
-
- CoalesceForUnmap(startAddress, unmapSize, owner);
-
- if (updateProtection)
- {
- UpdateProtection(startAddress, unmapSize, MemoryPermission.None);
- }
- }
-
- /// <summary>
- /// Coalesces adjacent placeholders after unmap.
- /// </summary>
- /// <param name="address">Address of the region that was unmapped</param>
- /// <param name="size">Size of the region that was unmapped in bytes</param>
- /// <param name="owner">Memory block that owns the mapping</param>
- private void CoalesceForUnmap(ulong address, ulong size, MemoryBlock owner)
- {
- ulong endAddress = address + size;
- ulong blockAddress = (ulong)owner.Pointer;
- ulong blockEnd = blockAddress + owner.Size;
- int unmappedCount = 0;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(address);
-
- if (node == null)
- {
- // Nothing to coalesce if we have no overlaps.
- return;
- }
-
- RangeNode<ulong> predecessor = node.Predecessor;
- RangeNode<ulong> successor = null;
-
- for (; node != null; node = successor)
- {
- successor = node.Successor;
- var overlap = node;
-
- if (!IsMapped(overlap.Value))
- {
- address = Math.Min(address, overlap.Start);
- endAddress = Math.Max(endAddress, overlap.End);
-
- _mappings.Remove(overlap);
- unmappedCount++;
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
-
- if (predecessor != null && !IsMapped(predecessor.Value) && predecessor.Start >= blockAddress)
- {
- address = Math.Min(address, predecessor.Start);
-
- _mappings.Remove(predecessor);
- unmappedCount++;
- }
-
- if (successor != null && !IsMapped(successor.Value) && successor.End <= blockEnd)
- {
- endAddress = Math.Max(endAddress, successor.End);
-
- _mappings.Remove(successor);
- unmappedCount++;
- }
-
- _mappings.Add(new RangeNode<ulong>(address, endAddress, ulong.MaxValue));
- }
-
- if (unmappedCount > 1)
- {
- size = endAddress - address;
-
- CheckFreeResult(WindowsApi.VirtualFree(
- (IntPtr)address,
- (IntPtr)size,
- AllocationType.Release | AllocationType.CoalescePlaceholders));
- }
- }
-
- /// <summary>
- /// Reprotects a region of memory that has been mapped.
- /// </summary>
- /// <param name="address">Address of the region to reprotect</param>
- /// <param name="size">Size of the region to reprotect in bytes</param>
- /// <param name="permission">New permissions</param>
- /// <returns>True if the reprotection was successful, false otherwise</returns>
- public bool ReprotectView(IntPtr address, IntPtr size, MemoryPermission permission)
- {
- ref var partialUnmapLock = ref GetPartialUnmapState().PartialUnmapLock;
- partialUnmapLock.AcquireReaderLock();
-
- try
- {
- return ReprotectViewInternal(address, size, permission, false);
- }
- finally
- {
- partialUnmapLock.ReleaseReaderLock();
- }
- }
-
- /// <summary>
- /// Reprotects a region of memory that has been mapped.
- /// </summary>
- /// <param name="address">Address of the region to reprotect</param>
- /// <param name="size">Size of the region to reprotect in bytes</param>
- /// <param name="permission">New permissions</param>
- /// <param name="throwOnError">Throw an exception instead of returning an error if the operation fails</param>
- /// <returns>True if the reprotection was successful or if <paramref name="throwOnError"/> is true, false otherwise</returns>
- /// <exception cref="WindowsApiException">If <paramref name="throwOnError"/> is true, it is thrown when the Windows API returns an error reprotecting the memory</exception>
- private bool ReprotectViewInternal(IntPtr address, IntPtr size, MemoryPermission permission, bool throwOnError)
- {
- ulong reprotectAddress = (ulong)address;
- ulong reprotectSize = (ulong)size;
- ulong endAddress = reprotectAddress + reprotectSize;
-
- bool success = true;
-
- lock (_mappings)
- {
- RangeNode<ulong> node = _mappings.GetNodeByKey(reprotectAddress);
- RangeNode<ulong> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var overlap = node;
-
- ulong mappedAddress = overlap.Start;
- ulong mappedSize = overlap.End - overlap.Start;
-
- if (mappedAddress < reprotectAddress)
- {
- ulong delta = reprotectAddress - mappedAddress;
- mappedAddress = reprotectAddress;
- mappedSize -= delta;
- }
-
- ulong mappedEndAddress = mappedAddress + mappedSize;
-
- if (mappedEndAddress > endAddress)
- {
- ulong delta = mappedEndAddress - endAddress;
- mappedSize -= delta;
- }
-
- if (!WindowsApi.VirtualProtect((IntPtr)mappedAddress, (IntPtr)mappedSize, WindowsApi.GetProtection(permission), out _))
- {
- if (throwOnError)
- {
- throw new WindowsApiException("VirtualProtect");
- }
-
- success = false;
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
-
- UpdateProtection(reprotectAddress, reprotectSize, permission);
-
- return success;
- }
-
- /// <summary>
- /// Checks the result of a VirtualFree operation, throwing if needed.
- /// </summary>
- /// <param name="success">Operation result</param>
- /// <exception cref="WindowsApiException">Thrown if <paramref name="success"/> is false</exception>
- private static void CheckFreeResult(bool success)
- {
- if (!success)
- {
- throw new WindowsApiException("VirtualFree");
- }
- }
-
- /// <summary>
- /// Adds an offset to a backing offset. This will do nothing if the backing offset is the special "unmapped" value.
- /// </summary>
- /// <param name="backingOffset">Backing offset</param>
- /// <param name="offset">Offset to be added</param>
- /// <returns>Added offset or just <paramref name="backingOffset"/> if the region is unmapped</returns>
- private static ulong AddBackingOffset(ulong backingOffset, ulong offset)
- {
- if (backingOffset == ulong.MaxValue)
- {
- return backingOffset;
- }
-
- return backingOffset + offset;
- }
-
- /// <summary>
- /// Checks if a region is unmapped.
- /// </summary>
- /// <param name="backingOffset">Backing offset to check</param>
- /// <returns>True if the backing offset is the special "unmapped" value, false otherwise</returns>
- private static bool IsMapped(ulong backingOffset)
- {
- return backingOffset != ulong.MaxValue;
- }
-
- /// <summary>
- /// Adds a protection to the list of protections.
- /// </summary>
- /// <param name="address">Address of the protected region</param>
- /// <param name="size">Size of the protected region in bytes</param>
- /// <param name="permission">Memory permissions of the region</param>
- private void UpdateProtection(ulong address, ulong size, MemoryPermission permission)
- {
- ulong endAddress = address + size;
-
- lock (_protections)
- {
- RangeNode<MemoryPermission> node = _protections.GetNodeByKey(address);
-
- if (node != null &&
- node.Start <= address &&
- node.End >= endAddress &&
- node.Value == permission)
- {
- return;
- }
-
- RangeNode<MemoryPermission> successorNode;
-
- ulong startAddress = address;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var protection = node;
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
- MemoryPermission protPermission = protection.Value;
-
- _protections.Remove(protection);
-
- if (protPermission == permission)
- {
- if (startAddress > protAddress)
- {
- startAddress = protAddress;
- }
-
- if (endAddress < protEndAddress)
- {
- endAddress = protEndAddress;
- }
- }
- else
- {
- if (startAddress > protAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(protAddress, startAddress, protPermission));
- }
-
- if (endAddress < protEndAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(endAddress, protEndAddress, protPermission));
- }
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
-
- _protections.Add(new RangeNode<MemoryPermission>(startAddress, endAddress, permission));
- }
- }
-
- /// <summary>
- /// Removes protection from the list of protections.
- /// </summary>
- /// <param name="address">Address of the protected region</param>
- /// <param name="size">Size of the protected region in bytes</param>
- private void RemoveProtection(ulong address, ulong size)
- {
- ulong endAddress = address + size;
-
- lock (_protections)
- {
- RangeNode<MemoryPermission> node = _protections.GetNodeByKey(address);
- RangeNode<MemoryPermission> successorNode;
-
- for (; node != null; node = successorNode)
- {
- successorNode = node.Successor;
- var protection = node;
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
- MemoryPermission protPermission = protection.Value;
-
- _protections.Remove(protection);
-
- if (address > protAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(protAddress, address, protPermission));
- }
-
- if (endAddress < protEndAddress)
- {
- _protections.Add(new RangeNode<MemoryPermission>(endAddress, protEndAddress, protPermission));
- }
-
- if (node.End >= endAddress)
- {
- break;
- }
- }
- }
- }
-
- /// <summary>
- /// Restores the protection of a given memory region that was remapped, using the protections list.
- /// </summary>
- /// <param name="address">Address of the remapped region</param>
- /// <param name="size">Size of the remapped region in bytes</param>
- private void RestoreRangeProtection(ulong address, ulong size)
- {
- ulong endAddress = address + size;
- var overlaps = new RangeNode<MemoryPermission>[InitialOverlapsSize];
- int count;
-
- lock (_protections)
- {
- count = _protections.GetNodes(address, endAddress, ref overlaps);
- }
-
- ulong startAddress = address;
-
- for (int index = 0; index < count; index++)
- {
- var protection = overlaps[index];
-
- // If protection is R/W we don't need to reprotect as views are initially mapped as R/W.
- if (protection.Value == MemoryPermission.ReadAndWrite)
- {
- continue;
- }
-
- ulong protAddress = protection.Start;
- ulong protEndAddress = protection.End;
-
- if (protAddress < address)
- {
- protAddress = address;
- }
-
- if (protEndAddress > endAddress)
- {
- protEndAddress = endAddress;
- }
-
- ReprotectViewInternal((IntPtr)protAddress, (IntPtr)(protEndAddress - protAddress), protection.Value, true);
- }
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsApi.cs b/Ryujinx.Memory/WindowsShared/WindowsApi.cs
deleted file mode 100644
index 67e704ea..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsApi.cs
+++ /dev/null
@@ -1,101 +0,0 @@
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- static partial class WindowsApi
- {
- public static readonly IntPtr InvalidHandleValue = new IntPtr(-1);
- public static readonly IntPtr CurrentProcessHandle = new IntPtr(-1);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- public static partial IntPtr VirtualAlloc(
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType flAllocationType,
- MemoryProtection flProtect);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- public static partial IntPtr VirtualAlloc2(
- IntPtr process,
- IntPtr lpAddress,
- IntPtr dwSize,
- AllocationType flAllocationType,
- MemoryProtection flProtect,
- IntPtr extendedParameters,
- ulong parameterCount);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool VirtualProtect(
- IntPtr lpAddress,
- IntPtr dwSize,
- MemoryProtection flNewProtect,
- out MemoryProtection lpflOldProtect);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool VirtualFree(IntPtr lpAddress, IntPtr dwSize, AllocationType dwFreeType);
-
- [LibraryImport("kernel32.dll", SetLastError = true, EntryPoint = "CreateFileMappingW")]
- public static partial IntPtr CreateFileMapping(
- IntPtr hFile,
- IntPtr lpFileMappingAttributes,
- FileMapProtection flProtect,
- uint dwMaximumSizeHigh,
- uint dwMaximumSizeLow,
- [MarshalAs(UnmanagedType.LPWStr)] string lpName);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool CloseHandle(IntPtr hObject);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- public static partial IntPtr MapViewOfFile(
- IntPtr hFileMappingObject,
- uint dwDesiredAccess,
- uint dwFileOffsetHigh,
- uint dwFileOffsetLow,
- IntPtr dwNumberOfBytesToMap);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- public static partial IntPtr MapViewOfFile3(
- IntPtr hFileMappingObject,
- IntPtr process,
- IntPtr baseAddress,
- ulong offset,
- IntPtr dwNumberOfBytesToMap,
- ulong allocationType,
- MemoryProtection dwDesiredAccess,
- IntPtr extendedParameters,
- ulong parameterCount);
-
- [LibraryImport("kernel32.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool UnmapViewOfFile(IntPtr lpBaseAddress);
-
- [LibraryImport("KernelBase.dll", SetLastError = true)]
- [return: MarshalAs(UnmanagedType.Bool)]
- public static partial bool UnmapViewOfFile2(IntPtr process, IntPtr lpBaseAddress, ulong unmapFlags);
-
- [LibraryImport("kernel32.dll")]
- public static partial uint GetLastError();
-
- [LibraryImport("kernel32.dll")]
- public static partial int GetCurrentThreadId();
-
- public static MemoryProtection GetProtection(MemoryPermission permission)
- {
- return permission switch
- {
- MemoryPermission.None => MemoryProtection.NoAccess,
- MemoryPermission.Read => MemoryProtection.ReadOnly,
- MemoryPermission.ReadAndWrite => MemoryProtection.ReadWrite,
- MemoryPermission.ReadAndExecute => MemoryProtection.ExecuteRead,
- MemoryPermission.ReadWriteExecute => MemoryProtection.ExecuteReadWrite,
- MemoryPermission.Execute => MemoryProtection.Execute,
- _ => throw new MemoryProtectionException(permission)
- };
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsApiException.cs b/Ryujinx.Memory/WindowsShared/WindowsApiException.cs
deleted file mode 100644
index 3140d705..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsApiException.cs
+++ /dev/null
@@ -1,24 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- class WindowsApiException : Exception
- {
- public WindowsApiException()
- {
- }
-
- public WindowsApiException(string functionName) : base(CreateMessage(functionName))
- {
- }
-
- public WindowsApiException(string functionName, Exception inner) : base(CreateMessage(functionName), inner)
- {
- }
-
- private static string CreateMessage(string functionName)
- {
- return $"{functionName} returned error code 0x{WindowsApi.GetLastError():X}.";
- }
- }
-} \ No newline at end of file
diff --git a/Ryujinx.Memory/WindowsShared/WindowsFlags.cs b/Ryujinx.Memory/WindowsShared/WindowsFlags.cs
deleted file mode 100644
index ca69cfe9..00000000
--- a/Ryujinx.Memory/WindowsShared/WindowsFlags.cs
+++ /dev/null
@@ -1,52 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory.WindowsShared
-{
- [Flags]
- enum AllocationType : uint
- {
- CoalescePlaceholders = 0x1,
- PreservePlaceholder = 0x2,
- Commit = 0x1000,
- Reserve = 0x2000,
- Decommit = 0x4000,
- ReplacePlaceholder = 0x4000,
- Release = 0x8000,
- ReservePlaceholder = 0x40000,
- Reset = 0x80000,
- Physical = 0x400000,
- TopDown = 0x100000,
- WriteWatch = 0x200000,
- LargePages = 0x20000000
- }
-
- [Flags]
- enum MemoryProtection : uint
- {
- NoAccess = 0x01,
- ReadOnly = 0x02,
- ReadWrite = 0x04,
- WriteCopy = 0x08,
- Execute = 0x10,
- ExecuteRead = 0x20,
- ExecuteReadWrite = 0x40,
- ExecuteWriteCopy = 0x80,
- GuardModifierflag = 0x100,
- NoCacheModifierflag = 0x200,
- WriteCombineModifierflag = 0x400
- }
-
- [Flags]
- enum FileMapProtection : uint
- {
- PageReadonly = 0x02,
- PageReadWrite = 0x04,
- PageWriteCopy = 0x08,
- PageExecuteRead = 0x20,
- PageExecuteReadWrite = 0x40,
- SectionCommit = 0x8000000,
- SectionImage = 0x1000000,
- SectionNoCache = 0x10000000,
- SectionReserve = 0x4000000
- }
-}
diff --git a/Ryujinx.Memory/WritableRegion.cs b/Ryujinx.Memory/WritableRegion.cs
deleted file mode 100644
index 21565ea5..00000000
--- a/Ryujinx.Memory/WritableRegion.cs
+++ /dev/null
@@ -1,38 +0,0 @@
-using System;
-
-namespace Ryujinx.Memory
-{
- public sealed class WritableRegion : IDisposable
- {
- private readonly IWritableBlock _block;
- private readonly ulong _va;
- private readonly bool _tracked;
-
- private bool NeedsWriteback => _block != null;
-
- public Memory<byte> Memory { get; }
-
- public WritableRegion(IWritableBlock block, ulong va, Memory<byte> memory, bool tracked = false)
- {
- _block = block;
- _va = va;
- _tracked = tracked;
- Memory = memory;
- }
-
- public void Dispose()
- {
- if (NeedsWriteback)
- {
- if (_tracked)
- {
- _block.Write(_va, Memory.Span);
- }
- else
- {
- _block.WriteUntracked(_va, Memory.Span);
- }
- }
- }
- }
-}